White discharge from the anus is usually caused by colitis, anal fistula, sinusitis and other diseases, which can be treated with medication. 1. Colitis: Considered to be caused by colitis, generally in addition to diarrhea and abdominal pain, there is often mucus secretion around the anus, manifested as white secretion around the anus. 2. anal fistula: due to the fistula continued to appear pus or fistula, intestinal secretions, resulting in white discharge from the anus, while there is perianal itching, rash formation. Fistula for ultrasound can be clear, clear can be treated by surgery. 3. Sinusitis: also considered sinusitis, sinusitis manifests itself as itching around the anus, due to inflammatory stimuli can lead to local white secretion, at the same time there is a foreign body sensation in the anus. When there is white discharge from the anus, it is recommended to go to the hospital as soon as possible to clarify the cause of the disease and give targeted treatment.