You are here
Home > MedlinePlus

MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

Alphabetical Listings

a b c d e f g h i j k l m
n o p q r s t u v w x y z

Bacterial Infections - National Library of Medicine

... living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. ... types can move into and damage your tissues. A few examples of bacteria that cause infections include ...

Bed Bugs - National Library of Medicine

... 4 to 3/8 inch long, and have a flat, oval-shaped body. Young bed bugs (called ... and lighter in color. Bed bugs hide in a variety of places around the bed. They might ...

Bile Duct Diseases - National Library of Medicine

Your liver makes a digestive juice called bile. Your gallbladder stores it between meals. When you eat, your gallbladder pushes the bile into ... diseases can block the bile ducts and cause a problem with the flow of bile: Gallstones, which ...

Blisters - National Library of Medicine

... Poison ivy, oak, and sumac Autoimmune diseases such as pemphigus Epidermolysis bullosa, an illness that causes the skin to be fragile Viral infections such as varicella zoster (which causes chickenpox and shingles) and ...

Brain Diseases - National Library of Medicine

... works quickly and automatically. But when you have a brain disease, it may affect how well you ... can affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Types ...

Campylobacter Infections - National Library of Medicine

Campylobacter infection is a common foodborne illness. You usually get it from eating contaminated food, especially raw or undercooked poultry. You can also ... Health care providers use stool tests to make a diagnosis. Most people get better without treatment. You ...

Cataract - National Library of Medicine

A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By ... more than half of all Americans either have a cataract or have had cataract surgery. A cataract ...

Chikungunya - National Library of Medicine

Chikungunya is a virus that spread by the same kinds of mosquitoes that spread dengue and Zika virus. Rarely, the virus ... swelling, and rash. Most people feel better within a week. In some cases, however, the joint pain ...

Constipation - National Library of Medicine

Constipation means that a person has three or fewer bowel movements in a week. The stool can be hard and dry. Sometimes it ... everyone gets constipated. In most cases, it lasts a short time and is not serious. There are ...

COVID-19 Vaccines - National Library of Medicine

... coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. In the United ... the vaccination program, including where you can find a vaccine. Centers for Disease Control and Prevention

Cytomegalovirus Infections - National Library of Medicine

Cytomegalovirus (CMV) is a virus found around the world. It is related to the viruses that cause chickenpox and infectious mononucleosis (mono). Between ... of adults in the United States have had a CMV infection by age 40. Once CMV is ...

Diphtheria - National Library of Medicine

Diphtheria is a serious bacterial infection. You can catch it from a person who has the infection and coughs or sneezes. ... by coming in contact with an object, such as a toy, that has bacteria on it. Diphtheria ...

Edema - National Library of Medicine

... especially after mastectomy Some medicines Standing or walking a lot when the weather is warm To keep ... limiting how much salt you eat, or taking a medicine called a diuretic - also called a water ...

Esophagus Disorders - National Library of Medicine

... esophagus is GERD (gastroesophageal reflux disease). With GERD, a muscle at the end of your esophagus does ... esophagitis. Doctors may use various tests to make a diagnosis. These include imaging tests, an upper endoscopy, ...

Gangrene - National Library of Medicine

... of tissues in your body. It happens when a part of your body loses its blood supply. ... happen on the surface of the body, such as on the skin, or inside the body, in ...

Health Fraud - National Library of Medicine

... that are not listed on the label Trigger a harmful interaction with medicines you are taking Cause ... pain. They target people with serious conditions such as cancer, diabetes, heart disease, HIV, and Alzheimer's disease. ...



thpxl