The reason for the pain is that the anus has been inserted these days.

Anus is a channel for discharging stool, not a channel for obtaining sexual pleasure, so it is not recommended to use penis insertion into anus to obtain sexual pleasure, otherwise it is easy to lead to anal skin laceration, which may lead to anal fissure, perianal abscess and other anal rectal diseases. The reason why anal oil is used is mainly to lubricate anus and facilitate anal sex. If there is still obvious anal pain after a few days of anal sex, it is necessary to go to the anorectal department of a regular hospital as soon as possible for anorectal examination and clear diagnosis and symptomatic treatment. It is recommended that patients should first go to a nearby clinic or hospital for treatment, and ask the doctor to diagnose the cause before further treatment.