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Lupus What is lupus? Systemic lupus erythematosus (SLE or lupus) is an autoimmune disease that causes your body’s immune system to attack its own cells and tissues. It causes episodes of inflammation to various parts of the body. It can affect your joints, tendons, and skin. It

Anorectal Malformation in Children What is an anorectal malformation in children? Anorectal malformations are birth defects, or problems that happen as an unborn baby is developing during pregnancy. With this defect, the anus and rectum don’t develop properly. They are the lower

Kidney Failure What is kidney failure? Kidney failure happens when damage results in loss of normal kidney function. There are 2 types of kidney failure—acute and chronic. Acute kidney failure starts abruptly. It can sometimes be reversed. Chronic kidney failure progresses slowly

HIV AIDS What is HIV/AIDS? The term AIDS refers to the most advanced stages of an infection caused by the human immunodeficiency virus (HIV). The current definition of AIDS includes: All HIV-infected people who have fewer than 200 CD4+ T cells (also called T4 cells). These cells

Allergy Overview What are allergies? Allergies are due to a problem with the body's immune system. Most allergic reactions happen when the immune system reacts to a false alarm. Normally the immune system attacks harmful things, such as viruses or bacteria. But sometimes it

Low-Vision Devices What is low vision? Low vision is a condition that means your vision can't be helped with traditional eyeglasses, contact lenses, intraocular lens implants, or corrective surgery. But in some cases, people with low vision may get help with special visual

Atherosclerosis What is atherosclerosis? Atherosclerosis is thickening of the walls of the arteries. It is also known as hardening of the arteries. It is caused by a buildup of plaque in the inner lining of an artery. Plaque is made up of deposits of fatty substances, cholesterol

Nutrition During Pregnancy The importance of good nutrition during pregnancy About 300 extra calories are needed every day to maintain a healthy pregnancy. These calories should come from a balanced diet of protein, fruits, vegetables, and whole grains. Sweets and fats should be

Head Injury in Children What is a head injury in children? A head injury is any kind of damage to the scalp, skull, brain, or other tissue and blood vessels in the head. A head injury is also often called a brain injury or traumatic brain injury (TBI), depending on the extent of

Rhabdomyosarcoma in Children What is rhabdomyosarcoma in children? Rhabdomyosarcoma is a type of cancer. It starts in cells that should grow into skeletal muscle cells. Skeletal muscles control voluntary muscle movements. These are movements we can control. This rare cancer is