When I masturbate, some liquid comes out of my anus. Why?

Hi,

Welcome to icliniq.com.

A liquid that flows out of your anus does not have any relation with your prostate fluid or semen. There is a more unlikely chance to have a painless condition when prostate fluid flows out through the anus. This symptom is never observed in healthy men. While masturbation, your anal muscle reacts unusually producing fluid from the bowel. It is the most likely cause seen in you. It indicates a sign and you need to consult a proctologist for a physical examination. A proctologist is a specialist of bowel diseases and he can able to rule out the cause in you. Kindly have a physical examination soon by consulting a proctologist and avoid masturbation.