Beta thalassemia is a blood disorder. It affects the production of a protein in the red blood cells. Here's what you need to know about this condition.

Your child has sickle cell anemia. This is a condition passed down through genes. It affects the red blood cells (RBCs), the cells that carry oxygen. Sickle cell disease can cause serious issues. Learn more about the condition here.

Sickle cell anemia is a problem passed down through genes. It affects the red blood cells (RBCs). RBCs have a protein called hemoglobin that lets them carry oxygen through the body. With sickle cell anemia, a problem with the hemoglobin causes the cells to be C-shaped (like a sickle) instead of round. As a result, the cells can't move easily through the smallest blood vessels.

Anemia occurs when there are not enough healthy red blood cells (RBCs) in the body. Mild anemia can cause your child to feel very tired or have less energy than normal. Severe anemia can cause many health problems.

These are some common tests that may be used to diagnose blood disorders. Most of the tests are done by taking a blood sample from a vein in the arm or from a finger or heel.

Learn about the 4 different parts of blood--red blood cells, white blood cells, platelets, and plasma.

NF2-related schwannomatosis (NF2-SWN) makes certain nerve cells more likely to develop tumors. The most common location for tumors is along the nerves in the ears (auditory nerves). This can lead to hearing loss and problems with balance.

Know what to expect after arthroscopy on your hip.

Blood in your vomit or stool can be a sign of gastrointestinal (GI) bleeding. GI bleeding can be scary. But the cause may not be serious. Here's a look at the possible causes of GI bleeding, and the types of tests you can expect.