Hi. Thanks for your query. Noted your history of itching inside your butt-hole on and off, pin worms not found, feels like scrapping there on passing bowel movements, there is no blood and tried to look for hemorrhoids, not seen. The cause of your symptoms can be due to the following reasons: Fissure-in-ano, a condition in which one gets small cuts at the front and back portions of the anus. Peri-anal excoriation of the skin. Procto-colitis. This can be diagnosed by the following ways: Consult a General Surgeon to have clinical examination, per-rectal digital examination and proctoscopy and then colonoscopy. Tests of stool, blood and urine. Once diagnosed, further treatment can be planned and can be as follows: - Surgical treatment for the fissure or so. - Medical treatment in the form of a course of an antibiotic, metronidazole, probiotics, multivitamins to strengthen the skin, de-wormin therapy. Sitz bath. Avoid all the foods and beverages that yo must have noticed by this time to cause the problems. Control of anxiety and/or stress.