Discharge coming from the anus. could this be from rough sex or from someone sticking their finger inside?

Anal Sex: It could be an std; it could be an infection or irritation caused by vigorous sexual intercourse". It could be from a hemorrhoid or anal fissure that is infected. It could be a sign of a food allergy. If the symptoms persist it may be best to get in to see a understanding doctor. And always, physicians know that people have anal sex and you need not be embarrassed or shy to ask for help.

Could be std: It depends on color / quantity / associated discomfort. If unprotected "rough sex, " std possible, as is local trauma. Should see dr for exam and testing.