Autoimmune hemolytic anemia is a type of anemia. Anemia is the medical term for when a person has too few red blood cells. Red blood cells are the cells in your blood that carry oxygen. If you have too few red blood cells, your body does not get all the oxygen it needs.
Autoimmune hemolytic anemia happens due to problems with the body’s infection-fighting system, called the “immune system.” Normally, the immune system kills germs. If something goes wrong and the immune system starts to attack healthy cells, this is called an “autoimmune” response. If your immune system attacks and destroys your red blood cells, you get autoimmune hemolytic anemia.
In many cases, doctors don’t know what causes the condition. But sometimes it is related to:
Most of these things do not lead to autoimmune hemolytic anemia.
Symptoms are the same as in other types of anemia. They might include:
Yes. Doctors use blood tests to check for autoimmune hemolytic anemia. The most important one is called the direct antiglobulin test (also called the “Coombs test”). This test checks for signs of an immune attack on your red blood cells.
Treatments can include:
Anemia is the medical term for when a person has too few red blood cells. Red blood cells are the cells in your blood that carry oxygen. If you have too few red blood cells, your body might not get all the oxygen it needs.
Different things can cause anemia. The most common cause is not getting enough iron. Another kind of anemia can be caused by other health problems. This is called “anemia of inflammation” or “anemia of chronic disease.” Some people with this type of anemia also have low iron, but this is not always the case.
Anemia of inflammation can be caused by a long-term or “chronic” condition. Examples include diabetes, cancer, chronic infections, or other chronic problems. The condition causes the body to keep iron away from the red blood cells that are being made.
Many people with anemia of inflammation have no symptoms. They find out they have it after their doctor does blood tests for another reason.
People who do have symptoms might:
These symptoms can also be related to the person’s health condition. They do not always mean the person has anemia.
Yes. If you have a long-term disease or condition and get the symptoms listed above, tell your doctor or nurse.
Usually not. A blood test can show if you have anemia. But there is not one specific test that can show if your type of anemia is anemia of inflammation. It is something your doctor might suspect when you have a chronic condition plus anemia.
If you have anemia and a health condition, and tests do not find another cause of your anemia, your doctor might decide that anemia of inflammation is the likely cause.
In the future, there might be a blood test that can show if a person’s anemia is due to anemia of inflammation.
The main treatment is to treat the chronic condition. For example, if you have diabetes, treatment to improve your blood sugar will also help with the anemia.
Sometimes other treatments are also given. For example:
Aplastic anemia is a condition that happens when a person has too few blood cells. There are 3 different types of blood cells:
Blood cells are made in the center of your bones, in a part called the bone marrow. Aplastic anemia happens when your body stops making enough of all 3 types of cells at the same time.
Aplastic anemia is caused by damage to your bone marrow. Some people are born with damaged bone marrow. In older children or adults, many things can damage bone marrow, including:
But for many people, doctors don’t know the cause of aplastic anemia.
Some symptoms are the same as in other types of anemia. They include:
People with aplastic anemia might also:
Yes. Tests include:
If your doctor thinks a genetic condition might be causing your aplastic anemia, he or she might do other tests, too.
The treatment depends on the cause of your aplastic anemia. Treatment can include:
Doctors try to avoid giving one person a lot of transfusions. They also try not to give blood or platelets donated from family members who might donate bone marrow later. That’s because doing these things can make a bone marrow transplant work less well.
Pernicious anemia is a condition that happens when a person cannot absorb vitamin B12 from food. Vitamin B12 is in foods that come from animals, including eggs, meat, poultry, and fish. Vegetarians and people who have had weight loss surgery need to take extra vitamin B12, but they do not have pernicious anemia.
In pernicious anemia, your stomach does not make an important protein that your body needs to absorb vitamin B12. The protein is called “intrinsic factor.” This happens when your infection-fighting system (immune system) attacks the intrinsic factor protein or the cells in the stomach that make it. As a result, even if you eat foods containing vitamin B12, your body does not absorb the vitamin.
Vitamin B12 is an important vitamin for making blood cells. People with pernicious anemia might have too few red blood cells (called “anemia”), too few white blood cells (which fight infection), or too few platelets (which help the blood to clot).
Vitamin B12 is also important for your brain and nerves. People with pernicious anemia can have depression, problems thinking, numbness and tingling in the hands and feet, trouble with balance, or weakness.
People with mild pernicious anemia might not have any symptoms. But people can get symptoms if the vitamin B12 level is low enough.
Symptoms can be due to anemia, such as:
Symptoms related to a low white blood count might include getting infections more often than usual.
Symptoms related to a low platelet count might include bruising or bleeding.
People with pernicious anemia might also have changes in how their brain and nerves work. That’s because vitamin B12 is important in helping the brain and nerves work normally. These changes might include:
Yes. Doctors use different blood tests to check for vitamin B12 levels and the immune problem that causes pernicious anemia.
Pernicious anemia is treated with vitamin B12 supplements. These can be given as an injection (shot) of vitamin B12 every day for 1 week. After that, a typical way to get the shot is once per week for 4 weeks, followed by monthly shots of vitamin B12 for the rest of your life. They can also be given as a pill that contains a high dose of vitamin B12.
These treatments must also be taken for life.
No matter what form of treatment you use, it is very important to keep taking vitamin B12. If you stop, your vitamin B12 level can become low again, and you can develop serious symptoms
Neutropenia is condition that happens when your blood does not have enough of the cells called “neutrophils.” Neutrophils are a type of white blood cell. They help your body fight infections.
Blood is made up of different types of cells. These cells are made in the center of your bones, in a part called the bone marrow. Neutropenia can happen if:
Some people with neutropenia have no symptoms. But people with severe neutropenia can get fevers and frequent infections.
Many different things can cause neutropenia, including:
Yes. A blood test called a “complete blood count with white blood cell differential” looks at all the different types of white blood cells in your blood. It can show if you have neutropenia. Doctors also call this test a “CBC with diff.” The important number is the number of neutrophils, or “neutrophil count,” not the percentage.
Your doctor or nurse will decide if you need other tests based on your age, other symptoms, and individual situation. Here are some of the things doctors use to find the cause of neutropenia:
The treatment depends on what caused you to get neutropenia.
If your neutropenia was caused by a medicine you took, your doctor might have you stop taking the medicine. He or she might be able to switch you to a different medicine that is less likely to cause the problem.
Your doctor might also prescribe drugs that help your bone marrow make white blood cells. These drugs are given in a shot and include:
Your doctor will tell you how concerned you need to be about serious infections. If you are at risk for serious infections, you’ll need to get to a doctor or hospital right away if you have a fever or other symptoms of infection. For people who have neutropenia from chemotherapy and get a fever, it is very important to get to the hospital right away to be treated for infection.
Despite some information that is out there, the answer for most people is no. Rarely, people who were born with some forms of severe neutropenia have a very slightly increased risk of a type of blood cancer called “acute myeloid leukemia.” But this risk is small and applies only to a small group of people who are born with neutropenia, not people who get it later in life.
Immune thrombocytopenia (ITP) is a bleeding disorder. People with ITP can bruise or bleed much more easily than normal.
ITP causes low platelets. Platelets are cells that are normally found in the blood that help blood to clot. People with ITP have fewer platelets than normal. That’s because their immune system destroys their platelets. The immune system is the body’s infection-fighting system.
Both adults and children can get ITP, but ITP is more common in children. Children who get ITP usually get it after they have an infection.
Some people with ITP have no symptoms. When people do have symptoms, they can:
Sometimes, there can be more serious bleeding, like bleeding in the brain or inside the body.
Yes and no. There is a test for the number of platelets in the blood, called the “platelet count.” This is often done as part of a “complete blood count” (or “CBC”). If your platelet count is low, ITP might be the cause. But there is no test that can tell for sure if the low platelet count is because of ITP or something else.
If a blood test shows that a person has a low platelet count, the doctor will ask about symptoms, do an exam, and do some blood tests. This is to help figure out if another condition is causing the low platelet count. The main test is called the “complete blood count.” It tells if other blood cell counts are also low, or only the platelet count.
In children, ITP is the most common cause of a low platelet count. In adults, there are other possible causes, and sometimes other tests are needed. For example, doctors sometimes do a test called a bone marrow biopsy. The bone marrow is the cells inside your bones. It makes all of the blood cells and platelets. A bone marrow biopsy is a procedure that involves using a needle to take a tiny sample of bone marrow from one of the hip bones. Then the sample is examined under a microscope.
If another cause for a low platelet count can’t be found, the person is usually said to have ITP.
Treatment for ITP depends on the person’s age, symptoms, and how low the platelet count is.
Children with ITP do not need treatment unless they have a lot of bleeding or have a very low platelet count. For most children, ITP goes away on its own within 6 months. But doctors follow children with ITP closely to make sure the ITP does not get worse or end up needing treatment.
Adults with a very low platelet count or bleeding will most likely need treatment. But if the ITP is mild, treatment is usually not needed.
Adults who need treatment are first treated with medicines called steroids. (These are not the same as the steroids some athletes take illegally.) Steroids stop the body’s immune system from destroying platelets. Even though steroids can help treat ITP, they can also cause problems of their own. The doctor will talk to you about the possible side effects of steroids. For people who need a very fast increase in platelet count, a medicine called intravenous immune globulin (or “IVIG”) can be used. This medicine stops the body from destroying platelets.
If the ITP doesn’t get better, doctors can use other treatments. These include:
If these treatments don’t work, other treatments are available.
Depending on their platelet count and symptoms, people with ITP might need to:
If you have ITP and want to get pregnant, talk with your doctor or nurse. Most women with ITP have a normal pregnancy and delivery.
There is a very small chance that your baby will have a low platelet count after he or she is born. A doctor will decide if the baby’s blood needs to be tested. Babies born with low platelet counts will get better in a few days. But the platelet count can go lower before it improves, so it is important to check the baby.
Myelodysplastic syndromes (MDS) are a group of conditions that involve the blood. Blood is made up of different types of cells. These cells are made in the center of bones, in a part called the bone marrow.
When people have MDS, their bone marrow does not work normally. It makes abnormal blood cells and does not make enough normal blood cells. This can cause symptoms.
Some people with MDS have no symptoms. They might find out that they have MDS after they have blood tests for another reason.
Other people do have symptoms. They might:
Yes. To test for MDS, your doctor or nurse can do:
There are different types of MDS. Your doctor will use your test results to figure out which type you have.
The right treatment for you will depend, for the most part, on the type of MDS you have, your symptoms, and your overall health. Most treatments do not cure MDS. But treatments can improve symptoms and help people feel better.
Doctors usually treat MDS with one or more of the following:
Your doctor or nurse might also talk with you about being in a clinical trial. A clinical trial is a research study that uses volunteers to test new treatments or new combinations of current treatments.
Polycythemia vera (also called “PV”) is a condition that affects bone marrow. Bone marrow is the tissue in the center of your bones that makes blood cells.
People with PV make too many red blood cells (the cells that carry oxygen to your body). They might also have higher-than-normal levels of:
People with PV might:
Yes. Your doctor or nurse will do an exam and order different blood tests. You might also need a bone marrow biopsy. For this test, a doctor takes a very small sample of your bone marrow. Then another doctor looks at the cells under a microscope.
Treatments include:
Your doctor might also prescribe medicines or other treatments to ease itching.
It’s important to follow all of your doctor’s instructions about visits and tests. It’s also important to talk to your doctor about any side effects or problems you have during treatment.
Getting treated for PV involves making many choices, such as what treatment to have and when.
Always let your doctors and nurses know how you feel about a treatment. Any time you are offered a treatment, ask:
Thalassemia is a condition that affects the red blood cells. Red blood cells are made inside your bones, in a part called the bone marrow. Red blood cells carry oxygen to all of the organs in the body using a protein called “hemoglobin.”
In thalassemia, the body does not make enough healthy hemoglobin. When a person’s hemoglobin is too low, it is called “anemia.”
Thalassemia is a life-long condition that people are born with. It is caused by an abnormal hemoglobin gene. There are many different types of thalassemia, depending on which hemoglobin gene is affected and how severe the anemia is. Beta thalassemia is 1 form. It includes:
This article is mostly about transfusion-dependent beta thalassemia.
In transfusion-dependent beta thalassemia, symptoms usually start after a baby is a few months old. Symptoms can include:
Some of the symptoms happen because parts of the body that don’t normally make red blood cells start trying to make them. This is why some people notice swelling or abnormal growth of certain organs or bones.
Yes. A blood test can show if someone has thalassemia, and what type they have. Some people also get a test to check their genes.
People with transfusion-dependent beta thalassemia can be treated with:
Although blood transfusions help treat thalassemia, they can also cause problems. That’s because blood has iron in it. When people get a lot of blood transfusions, their body gets too much iron. Too much iron can damage the heart, liver, and other organs. Transfusion-dependent beta thalassemia also causes the body to absorb extra iron from food. Because of this, it’s possible to have too much iron even if you do not get transfusions or only get transfusions once in a while.
You might need other treatments, too. For example:
The only cure for thalassemia is a treatment called a “bone marrow transplant.” This is also called a “stem cell transplant.” This involves getting bone marrow cells from another person. Usually the other person, or “donor,” is a sibling who has similar genes but does not have transfusion-dependent thalassemia. (If they have a milder form of thalassemia, they can still be a donor.) Bone marrow transplant is only done for people who have a severe form of thalassemia, since it can cause many side effects, including death.
Doctors are also trying to find other treatments that can cure thalassemia. A type of bone marrow transplant that uses your own bone marrow cells is used in Europe. The cells are treated in a lab so they have a normal gene instead of the abnormal hemoglobin gene. This is called “gene therapy.” Very few people have had this treatment because it is still being tested. But it might become more common in the future.
People with all types of thalassemia should:
If you have thalassemia, it’s possible that your children will have it, too. Your doctor can talk to you about the chances of this happening. If your partner also has thalassemia or another blood disorder like sickle cell disease, you might have options like in vitro fertilization (“IVF”) using an egg or sperm from another person.
Your doctor might also suggest other changes in your medical care before or during pregnancy. If you do get pregnant, you can choose to test your unborn baby for thalassemia.
Sickle cell disease is a condition that affects cells in the blood called red blood cells. The red blood cells carry oxygen to organs in the body.
There are a few different types of sickle cell disease. A common type is called “sickle cell anemia.”
Normal red blood cells are disc-shaped, sort of like a half-filled water balloon. They are flexible enough to fit through small blood vessels. In people with sickle cell disease, some of the red blood cells have an abnormal shape. Under a microscope, they look similar to an old-time farming tool called a “sickle.” This is how the disease gets its name.
The “sickle cells” are stickier and less flexible than normal red blood cells. Because of this, they can get stuck in the blood vessels easily. When this happens, they don’t bring enough oxygen to the body’s organs. This can cause pain or organ damage.
Sickle cell disease is a life-long condition that people are born with. It is caused by an abnormal gene:
Symptoms usually start after a baby is a few months old. Most commonly, people with sickle cell disease have episodes of pain. Some doctors use the term “sickle cell pain episode” or “sickle cell crisis.” But you should not wait for pain to become a crisis before you get help.
Sickle cell pain can be in the bones, chest, or other parts of the body. It can be mild or severe, and last hours to days. People can have other symptoms with their pain, too. The symptoms depend on how old they are:
Most episodes of pain just happen because of the abnormal red blood cells, and can’t be predicted. But sometimes, the pain can be related to other things, such as:
Sickle cell disease can also cause other symptoms and problems, including:
Yes. A blood test can show if someone has sickle cell disease. All newborn babies in the United States are tested for sickle cell disease before they leave the hospital.
Some parents are tested for the sickle cell gene before getting pregnant. This is to find out their risk of having a baby with sickle cell disease. Talk to your doctor about whether you should be tested.
Sickle cell disease involves life-long treatment. Some treatments help prevent the different problems sickle cell disease can cause. Others are aimed at relieving pain or treating other problems, like infection.
Medicines for infections include:
It is important for people with sickle cell disease to be treated for infections right away. Call your doctor as soon as possible if you get a fever or think you might have an infection.
Other treatments for sickle cell disease include:
A procedure called a “bone marrow transplant” or “stem cell transplant” can cure sickle cell disease. This procedure replaces the “stem cells” that make your blood with healthy cells. But this treatment is not done very often for sickle cell disease. That’s because it has many side effects and can be done only if people meet certain conditions.
Gene therapy is also being studied as a way to cure sickle cell disease. It involves using the person’s own stem cells for a bone marrow transplant. The cells are treated in a lab so they have a normal gene instead of the sickle cell gene.
Your doctor or nurse will tell you what to look for and when to call for help. In general, you should call right away if the person with sickle cell disease has any of the following problems. Do not wait to call, even if it’s the middle of the night, because it’s important to get treatment right away. Call for help if the person:
Some of these stroke symptoms are shown in the picture .
People with sickle cell disease should:
If you have sickle cell disease and want to get pregnant, talk with your doctor or nurse. A sickle cell specialist or a genetic counselor can do a blood test on your partner and tell you your baby’s chance of having sickle cell disease.
If you have sickle cell disease and are pregnant, your doctor will follow you and your baby closely throughout your pregnancy. That’s because sickle cell disease can cause problems for both you and your baby.
Hemochromatosis is a condition that can cause too much iron to build up in the body. This can lead to problems such as liver damage, heart damage, joint pain, and weakness.
Hemochromatosis can be caused by abnormal genes and can run in families. This type of hemochromatosis is called “hereditary hemochromatosis.” If your parent, brother, sister, or child has hemochromatosis, ask your doctor or nurse about getting tested for it.
In other cases, hemochromatosis can be caused by other things, for example, getting a lot of blood transfusions (more than 10 or 20). Or it can be related to other blood diseases.
Most people find out they have hemochromatosis from a blood test. Anyone who has a family member with the condition should get tested. People with symptoms of too much iron, or an abnormal blood test showing high iron levels, should also be tested.
Many people find out they have hemochromatosis before they have any symptoms.
If a person does have symptoms before they are diagnosed, the symptoms can include:
Sometimes there are no symptoms, but routine lab tests (that are done for other reasons) show problems that could be a sign of hemochromatosis. These might include:
If hemochromatosis is not treated, it can lead to long-term problems that include:
Yes. Your doctor or nurse can do different blood tests to check the iron level in your blood. If the iron level is high, they can test for the hemochromatosis gene.
If you have the gene but your iron level is normal, you might not need treatment. Your doctor can do regular blood tests to check your iron level. If your iron level gets too high, then you need treatment.
When treatment is needed, most people are treated by having some of their blood removed on a regular basis, similar to donating blood. This treatment works because taking blood from a person’s body removes iron.
If you are being treated for hemochromatosis, you will probably have blood taken once a week until enough iron has been removed. This usually takes about a year, but it depends on how much extra iron you have. To track how well the treatment is working, your doctor or nurse will probably do regular blood tests. This is to check for anemia and see how well the iron removal is going.
Once your iron level is normal, you will have some treatment to keep your iron level from getting too high again. This involves having blood taken less often (a few times a year). Most people need this treatment for the rest of their life.
You might need other treatments if your hemochromatosis leads to long-term problems. For example, if you get diabetes, you might need to take diabetes medicines.
If you have certain liver problems, you will need follow-up tests to check your liver for the rest of your life. That’s because people with certain liver problems caused by hemochromatosis have a higher chance of getting liver cancer.
Yes. You should avoid iron supplements and vitamins with extra iron. It is fine to take a regular vitamin without extra iron, and it is fine to eat a regular diet including meat.
It depends. Ask your doctor or nurse if it is OK for you to drink alcohol. People who have hemochromatosis and certain liver problems should not drink alcohol. Also, some people can reduce their alcohol use to lower the chance of developing liver problems.
If you have hemochromatosis and want to get pregnant, talk with your doctor or nurse. They can help you understand the chances that your baby will get the abnormal gene. Even if your baby does get hemochromatosis, he or she will not have any symptoms or need treatment until adulthood.