U.S. doctors online nowAsk doctors free
A 48-year-old female asked:

I had a cyst on my shoulder for fifteen years.. just a hard knot.. three weeks ago it burst..leaked thick puss like fluid.. now leaking blood..i ?

1 doctor answer1 doctor weighed in
Dr. Cathleen London
Family Medicine 27 years experience
Sebaceous cyst: This sounds like a sebaceous cyst that is now draining. The blood is actually serosanguinous - what your body puts into hollow spaces to fill the void. If it does not stop draining on its own please go get seen.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Apr 30, 2015


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.