Rarely: Most commonly from hemorrhoids. Other causes include fissures, ulcers, colitis as well as cancer.
Answered 4/17/2013
5.2k views
A doctor has provided 1 answer
5 doctors weighed in across 2 answers
3 doctors weighed in across 3 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question