DEFINITION Black hairy tongue is a temporary, harmless oral condition that gives your tongue a dark, furry appearance. The distinct look of black hairy tongue usually results from a buildup of dead skin cells on the numerous tiny projections (papillae)…
DEFINITION Bladder cancer is a type of cancer that begins in your bladder — a balloon-shaped organ in your pelvic area that stores urine. Bladder cancer begins most often in the cells that line the inside of the bladder. Bladder…
DEFINITION ნაღვლის რეფლუქსი ნიშნავს ღვიძლში წარმოქმნილი მომნელებელი სითხის (ნაღველი) კუჭში ან საყლაპავში (კუჭისა და პირის შემაერთებელი მილი) ამოსვლას. ნაღვლის რეფლუქსს შესაძლოა ახლდეს მჟავას რეფლუქსიც, რაც ნიშნავს კუჭის მჟავების საყლაპავამდე ამოსვლას. ამის მიუხედავად, ნაღვლის და მჟავას რეფლუქსი სხვადასხვა დარღვევაა.…
DEFINITION Your peripheral nerves link your brain and spinal cord to other parts of your body. These nerves control your muscles so that you can walk, blink, swallow, pick things up and do other activities. Several types…
DEFINITION When you have a blocked tear duct, your tears can’t drain normally, leaving you with a watery, irritated eye. Blocked tear ducts are caused by a partial or complete obstruction in the tear drainage system. Blocked…
DEFINITION Blind loop syndrome occurs when part of the small intestine forms a loop that food bypasses during digestion. The presence of this “blind loop” means food may not move normally through the digestive tract. Slowly moving…
DEFINITION Head and neck cancers are a broad category of cancers that occur in the head and neck region. Types of head and neck cancers include: Esthesioneuroblastoma Floor of mouth cancer Lip cancer Mouth cancer…
DEFINITION Bird flu is caused by a type of influenza virus that rarely infects humans. More than a dozen types of bird flu have been identified, including the two strains that have most recently infected humans — H5N1 and H7N9.…
DEFINITION Benign adrenal tumors are noncancerous masses that form in the adrenal glands. As part of your endocrine system, the adrenal glands produce hormones that give instructions to virtually every organ and tissue in your body. You…
DEFINITION Head lice are tiny insects that feed on blood from the human scalp. An infestation of head lice, called pediculosis capitis, most often affects children and usually results from the direct transfer of lice from the hair of one…
DEFINITION Binge-eating disorder is a serious eating disorder in which you frequently consume unusually large amounts of food and feel unable to stop eating. Almost everyone overeats on occasion, such as having seconds or thirds of a…
DEFINITION Bell’s palsy causes sudden weakness in your facial muscles. This makes half of your face appear to droop. Your smile is one-sided, and your eye on that side resists closing. Bell’s palsy, also known as facial…