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... them. The pain may start somewhere else, such as your chest. Severe pain doesn't always mean a serious problem. Nor does mild pain mean a problem is not serious. Call your health care ...
Acne is a common skin disease that causes pimples. Pimples form when hair follicles
under your skin clog up. Most pimples ... knows exactly what causes acne. Hormone changes, such as those during the teenage
years and pregnancy, probably ...
An acoustic neuroma is a benign tumor that develops on the nerve that connects the ear to the brain. The tumor usually grows slowly. As it grows, it presses against the hearing and ...
... respond to stress and has many other functions. A number of disorders can affect the adrenal glands, ... in the outer part of the gland Neuroblastoma, a type of childhood cancer Pheochromocytoma - a rare tumor ...
... to anesthesia, or accidental injury. Some people have a greater risk of complications because of other medical ... Following your surgeon's advice can help you recover as soon as possible. Agency for Healthcare Research and ...
Air pollution is a mixture of solid particles and gases in the air. Car emissions,
chemicals from factories, dust, pollen and mold spores may be suspended as particles.
Ozone, a gas, is a major part ...
... the energy in your body. If you have a metabolic disorder, something goes wrong with this process. ... down certain amino acids. Or there may be a problem getting the amino acids into your cells. ...
... to animals or animal products. You can get a disease directly from an animal, or indirectly, through ... who visit farms or petting zoos wash up as well. Though they may be cute and cuddly, ...
Anthrax is a disease caused by Bacillus anthracis, a germ that lives in soil. Many people know about it from the ... sick. Anthrax is rare. It affects animals such as cattle, sheep, and goats more often than people. ...
Arsenic is a natural element found in soil and minerals. Arsenic compounds are used to preserve wood, as pesticides, and in some industries. Arsenic can get ...
... or previously frozen embryos. It may also involve a surrogate or gestational carrier. A surrogate becomes pregnant with sperm from one partner of the couple. A gestational carrier becomes pregnant with an egg from ...
Athlete's foot is a common infection caused by a fungus. It most often affects the space between the toes. Symptoms include itching, burning, ... can get athlete's foot from damp surfaces, such as showers, swimming pools, and locker room floors. To ...
... spongy tissue inside some of your bones, such as your hip and thigh bones. It contains stem ... stem cells or how they develop: In leukemia, a cancer of the blood, the bone marrow makes ...
The brachial plexus is a network of nerves that sends signals from the spine to the shoulder, arm, and hand. Damage to the brachial plexus can cause symptoms such as: A limp or paralyzed arm Lack of muscle ...
Carbon monoxide (CO) is a gas that has no odor or color. But it is very dangerous. It can cause sudden illness and death. CO is found in combustion fumes, such as those made by cars and trucks, lanterns, stoves, ...
... from your windpipe to your lungs Lungs Pleura, a thin layer of tissue that covers the lungs ... chest space Heart and large blood vessels Thymus, a gland that's part of your immune system Nerves ...
... can also cause the same symptoms. Check with a doctor if your child has any of the ...
... bleed suddenly. Kidney failure Jaundice Severe itching Gallstones A small number of people with cirrhosis get liver ... diagnose cirrhosis with blood tests, imaging tests, or a biopsy. Cirrhosis has many causes. In the United ...
... copied material, which has the same genetic makeup as the original, is referred to as a clone. The most famous clone was a Scottish sheep named Dolly. There are three different ...
Cold sores are caused by a contagious virus called herpes simplex virus (HSV). There are two types of HSV. Type 1 usually causes oral herpes, or cold ... of the mouth. They are not the same as canker sores, which are not contagious. There is ...
