6277 results found
Medical tests
… chance of getting a rare disease called rickets . Your body uses sunshine to make its own vitamin D. Vitamin D is found … occurs in the hip or wrist. Have gone through menopause and worry about osteoporosis. Have low levels of vitamin … doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. …
Health topics
… after surgery. Why It Is Done Corneal ring implants are used to correct vision in adults with mild nearsightedness … for at least 1 year. Corneal ring implants can also be used to treat certain diseases of the cornea (such as … footnote 1 They have not been studied or approved for use in treating moderate or severe nearsightedness. There is …
Health topics
… a pit. Loose hair and skin debris trapped there can cause an infection or an abscess. It's also called a pilonidal cyst. What causes it? The exact cause isn't known. But it may start when skin above the …
Health topics
… the air, and how long you have been exposed to it. What causes it? The inhalation and accumulation of coal dust causes black lung disease. This stems from working in a coal … or milling graphite, and manufacturing carbon electrodes (used in certain types of large furnaces) and carbon black (a …
Health topics
… influence your weight by their effect on: How calories are used (energy metabolism). Some people use calories efficiently—they need fewer calories to fuel … in "leftover" calories being stored as fat. Other people use calories less efficiently—they need more calories to …
Health topics
… But fibroids aren't cancer. And they usually don't cause problems. You don't need to do anything about them unless they are causing problems. What causes them? Doctors aren't sure what causes fibroids. But the hormones estrogen and progesterone …
Health topics
… you can see to the roots that are in the jawbone. Damage caused by tooth decay is the most common reason for a tooth's … You may also get medicine to help you relax. The dentist uses a special tool to grasp the tooth and lift it out of … pulled, or if it doesn't come out in one piece, the dentist uses other tools to remove the rest of the tooth. After the …
Medical tests
… assay (ELISA). This test is usually the first one used to detect infection with HIV. If antibodies to HIV are … PCR testing isn't done as often as antibody testing, because it requires technical skill and expensive equipment. … tests are negative for the virus. The PCR test is very useful to find a very recent infection, find out if an HIV …
Health topics
… in their lives, and some people have them regularly. What causes it? The cause of canker sores is unknown, but they tend to run in … If you see your doctor or dentist about the pain caused by your canker sores, the doctor or dentist will do a …
Health topics
… removal of all or part of the bladder. It is mainly used to treat bladder cancer that has spread into the … Partial cystectomy takes out part of the bladder. It is used to treat cancer that has invaded the bladder wall in … ways this can be done, such as: An ileal conduit. It uses a piece of your small intestine to make a tube. After …
