Old blood: Black blood is solely old blood. And in and of itself is typically not something to worry about. Often, a menstrual cycle will start out with black blood and then turn into bright red a few days later.
Answered 7/27/2014
3.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question