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.
... or backs up the ureter, you may get a urinary tract infection. Doctors diagnose problems with the ... x-rays, and examination of the ureter with a scope called a cystoscope. Treatment depends on the ...
... you are ready to urinate. It swells into a round shape when it is full and gets ... problems like incontinence, overactive bladder, or interstitial cystitis A blockage that prevents you from emptying your bladder ...
... from birth and have severe balance problems from a young age. Vision problems usually start by age ... hearing loss. There is no cure. Tools such as hearing aids or cochlear implants can help some ...
Menstruation, or a period, is a woman's monthly bleeding. Abnormal vaginal bleeding is different from normal menstrual periods. It could be bleeding that is between periods, is ...
... normally. Vitamin E is an antioxidant. It plays a role in your immune system and metabolic processes. ... foods they eat. People with certain disorders, such as liver diseases, cystic fibrosis, and Crohn's disease may ...
... have very little vitamin K. They usually get a shot of vitamin K soon after they are ... Most people get vitamin K from plants such as green vegetables, and dark berries. Bacteria in your ...
... for everyone. Many have side effects. Some take a long time. Some do not always work. NIH: ...
... water: Avoid alcohol when swimming or boating Wear a life jacket whenever you're in a boat Don't swim alone, or in bad ...
An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body ... inflammation. During this process, pus forms. Pus is a mixture of living and dead white blood cells, ...
... deposits. The deposits can collect in organs such as the kidney and heart. This can cause the ...
Anaphylaxis is a serious allergic reaction. It can begin very quickly, and symptoms may be life-threatening. The most common causes ... system - dizziness or fainting If someone is having a serious allergic reaction, call 911. If an auto- ...
An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from ... an aneurysm in the brain bursts, it causes a stroke. Aneurysms can develop and become large before ...
Behcet's syndrome is a disease that involves vasculitis, which is inflammation of the blood vessels. It causes problems in many parts of the ... their 20s and 30s. Diagnosing Behcet's can take a long time, because symptoms may come and go, ...
... eye Impaired ability to taste Scientists think that a viral infection makes the facial nerve swell or ... if you are pregnant, diabetic or sick with a cold or flu. Three out of four patients ...
A bioterrorism attack is the deliberate release of viruses, bacteria, or other germs to cause illness or ... fever viruses, plague, or smallpox could be used as biological agents. Biodefense uses medical measures to protect ...
Cancer that starts in a bone is uncommon. Cancer that has spread to the bone from another part of the body is more common. There ...
Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and ...
Most brain malformations begin long before a baby is born. Something damages the developing nervous system or causes it to develop abnormally. Sometimes it's a genetic problem. In other ...
... imaging tests. Medicines may ease some symptoms, such as pain. Surgery is the only treatment available to ...
Chiropractic is a health care profession. Chiropractors perform adjustments (manipulations) to the spine or other parts of the body. The goal ...
