Diarrhea pain in the butt is generally caused by repeated friction of the anus by the paper towel or local spasm of the anus, etc. Treatment includes etiological treatment, symptomatic treatment, and so on. 1. Etiological treatment: diarrhea due to feces, paper towels will repeatedly stimulate the anus to cause anal pain, so if necessary, need to follow the doctor’s advice to use drugs to stop diarrhea, such as loperamide, etc., while maintaining a light diet, avoid eating spicy stimulating food. 2. Symptomatic treatment: If the pain is caused by anal spasm, you can consider warm water sitz bath to relieve, if the pain is caused by repeated rubbing of paper towels need to pay attention to the process of wiping gently; if necessary, you can also consider the local application of compound keratine cream treatment. Diarrhea pain in the butt may also be combined with anal fissure and other conditions, if the symptoms continue to be unable to alleviate the recommendation to go to the hospital.