The feeling of bugs moving in the anus may be caused by anal fissure, roundworm worms and anal pruritus. 1. Anal fissure: pain in defecation can occur during defecation, pain relief after defecation phenomenon, after defecation due to cracked wound healing, local nerve reaction, can feel the feeling of worms moving, but not really have worms infected, this kind of people need to be through the local application of ointment, such as musk hemorrhoidal ointment, nitroglycerin ointment and so on for treatment. 2. Ascaris lumbricoides peristalticus: most common in children, mostly in the crowd who often eat some cold food, need to go to the hospital in time for routine examination of the stool, after diagnosis, you can use mebendazole for treatment. 3. Anus pruritus: can appear in the anus with a worm crawling feeling, mostly a subjective feeling, there can also be anal itching, mostly due to sinus infection, eczema caused by the phenomenon. The phenomenon of anal feeling of bugs moving, it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease, in accordance with the doctor’s instructions to give reasonable standardized treatment.