Health A to Z

Authoritative, patient-focused summaries of key ailments and diseases

Patient Basics: Bacterial Vaginosis (Gardnerella Vaginitis)

Originally published by Harvard Health. What Is It? Bacterial vaginosis is the most common cause of abnormal vaginal odor and discharge. It is caused by a...

Patient Basics: Balanitis

Originally published by Harvard Health. What Is It? Balanitis is an infection or inflammation of the skin on the head (glans) of the penis. In men...

Patient Basics: Barium Enema

Originally published by Harvard Health. What Is It? A barium enema is a procedure used to examine the lining of the colon and rectum. The procedure...

Patient Basics: Barotrauma

Originally published by Harvard Health. What Is It? Barotrauma refers to injuries caused by increased air or water pressure, such as during airplane flights or scuba...

Patient Basics: Bartholin’s Gland Cyst

Originally published by Harvard Health. What Is It? A cyst is a sac filled with liquid or semisolid material that forms under the skin or somewhere...

Patient Basics: Basal Cell Carcinoma

Originally published by Harvard Health. What Is It? Basal cell cancer is the most common form of skin cancer diagnosed in the United States.Basal cells are...

Patient Basics: Bedsores (Decubitus Ulcers)

Originally published by Harvard Health. What Is It? Bedsores, also called pressure ulcers or decubitus ulcers, are areas of broken skin that can develop in people...

Patient Basics: Behcet’s Disease

Originally published by Harvard Health. What Is It? Behçet's (bay-setz) syndrome is a rare disease that causes inflammation of many parts of the body. These include...

Patient Basics: Bell’s Palsy

Originally published by Harvard Health. What Is It? Bell's palsy is a weakness of the muscles on one side of the face caused by problems with...

Patient Basics: Bile Duct Diseases

Originally published by Harvard Health.What Is It? Your gallbladder stores bile until you eat, then releases bile into your small intestine to help digest food....
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