Extra-anal bulges are usually caused by diseases such as rectal polyps, which usually do not have malignant changes, but if the patient is due to the symptoms caused by warts, then there is a possibility of malignant changes. 1. Rectal polyps: may be due to genetic, infection and other factors lead to intestinal mucosa from the surface protruding into the intestinal lumen, thus appearing the phenomenon of extra-anal cumbersome organisms, this disease will not appear malignant lesions phenomenon. For the more serious patients, generally can take endoscopic surgery and other surgical methods for treatment. 2. Acute warts: usually due to human papillomavirus infection caused by sexually transmitted diseases, if not actively treated, there is the possibility of malignant changes. It is recommended that patients with acromegaly should seek medical attention in time, and under the guidance of the doctor, the use of onychomycosis, imiquimod cream and other drugs for treatment. For more serious patients, can take high-frequency electric knife and other surgical methods for treatment. There may be other causes of extra-anal growths, and whether they are malignant or not requires systematic examination in a hospital and differential diagnosis under the guidance of a professional doctor, as well as active treatment, so as not to miss the boat.