How a polyp biopsy is taken depends on the location: 1  Colonoscopy or flexible sigmoidoscopy explores the large bowel. 2  Colposcopy-directed biopsy examines the vagina and cervix. 3  Esophagogastroduodenoscopy (EGD) or other endoscopy is used for the throat, stomach, and small bowel.  Laryngoscopy is used for the nose and throat.
11 doctors agreed: Several: Possible causes of pink eye (conjunctivitis) include bacterial or viral infection, allergic reaction, rosacea, dry eye, and autoimmune disease.
On this page: Causes of eye discharge â¢ Eye discharge treatment â¢ Babies and blocked tear ducts See also: More about eye infections â¢ 17 red eye causes â¢ How long does pink eye last? Eye discharge, or sleep in your eyes, is a combination of mucus, oil, skin cells and other debris that accumulates in the corner of your eye while you sleep.