The vicinity of the anus is within the scope of the colonoscopy. Enteroscopy is mainly a kind of examination that inserts the enteroscope into the intestines through the anus to examine intestinal lesions, and the anus is also within the scope of enteroscopy. For certain anal diseases, such as internal hemorrhoids in high position, which cannot be detected by finger test, enteroscopy should be performed for auxiliary diagnosis. For anal abscess, menstruation and other conditions, should not be carried out enteroscopy, easy to aggravate the disease or affect the examination results. You can wait until the disease gets better and women can be examined after menstruation. If anal disease occurs, you should seek medical treatment immediately, conduct suitable examination under the guidance of doctors, and start treatment as soon as possible after diagnosis to avoid progression of the disease.