Health Information Library

This condition involves swollen lymph nodes in the membrane that connects the bowel to the abdominal wall. It usually affects children and teens.

Learn about this type of non-Hodgkin lymphoma that attacks the skin. Find out about symptoms, diagnosis and treatments.

Learn about this injury that affects one of the main ligaments in your knee and most commonly occurs during sports such as soccer and football.

Find out more about the symptoms, diagnosis and treatment of this cancer of the lymphatic system.

Learn about this cancer that affects the anal canal and causes bleeding and pain. Treatment usually involves a combination of radiation and chemotherapy.

Learn about causes of this common irritating skin condition and which treatments and self-care measures may provide relief.

This mental health condition includes schizophrenia symptoms, such as delusions and hallucinations, and mood disorder symptoms, such as depression and mania.

If you find it hard to fall asleep or stay asleep, or you have other long-term sleep problems, behavior therapy can help. Learn what's causing your sleep problems.

Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.

Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.

This condition occurs most often in the lower back. In many cases, it causes no symptoms and requires no treatment. Surgery is rarely needed.

This condition, also called premature ovarian failure, happens in women under age 40. Hormone therapy can lessen symptoms.

This severe mental disorder in children involves hallucinations, delusions, and disordered thinking and behavior that can impair the ability to function.

Learn about this rare type of white blood cell cancer. Treatments include chemotherapy, targeted therapy, immunotherapy and bone marrow transplant.

This condition is due to drinking large amounts of alcohol in a short time. It is serious and can be deadly. Here's what to do in an emergency.

People with this mental health condition do not want to be with others. They stay away from social activities. They're limited in how they express emotions.

This type of fat raises 'bad' cholesterol and lowers 'good' cholesterol.

Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.

A condition of blood plasma that produces altered antibodies that increase the risk of blood cancers and other conditions.

Bacteria that can live in water from air conditioning systems, showers and spas cause this severe form of pneumonia.