Dr. Sarah W Alexander MD

Leukemia is a type of cancer that usually begins in the bone marrow and can cause an increase in the growth of abnormal white blood cells, severely impairing the immune system of the body. There are primarily four types of leukemia, including acute myeloid leukaemia, acute lymphoblastic leukaemia,...

What is Gastroenteritis?Gastroenteritis refers to an infection of the gastrointestinal tract, and leads to inflammation of the stomach and the intestines. This irritation, characterized by nausea, vomiting and diarrhea, is also known as the stomach flu. The stomach flu entails severe diarrhea,...

PurpuraPurpura refers to purple-colored spots that are usually seen on the skin, including mucous membranes and other organs. It is also called skin hemorrhages or blood spots.Purpura is usually recognized when there is pooling of blood under the skin due to ruptured small blood vessels. The size of...

Lymphoma is a blood cancer that affects both children and adults.Lymphoma begins its growth in the lymphatic white blood cells of the lymph system. This system is a major warrior in fighting off infections and diseases. It is part of the body’s immunity team.The lymph system loops throughout the...

Leukemia in its early stages may present no signs or symptoms, as these only appear when the leukemia cells have taken over a large number of normal blood cells. A person with leukemia is very lucky indeed if early-stage detection occurs incidentally, through a routine blood test or one done for...

IntroductionA decrease in the number of white blood cells (WBCs) is referred to as leukopenia. There are several causes for leukopenia. It may be due to certain drugs, cancer, radiation and chemotherapy for cancer, stem cell transplant, surgery, steroids, or autoimmune disorders. The immune system...