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.
Pinkeye is very common. It usually is not serious and goes away in 7 to 10 days without medical treatment. Most cases of pinkeye are caused by: Infections caused by viruses or bacteria. Dry eyes from lack of tears or exposure to wind and sun. Chemicals, fumes, or smoke (chemical conjunctivitis).