Hi,I am Dr. Shanthi.E (General & Family Physician). I will be looking into your question and guiding you through the process. Please write your question below.
I have had a benign cyst on the thumb for more that 3 months. It bursts when getting caught on things. It's not hurting . It hasn't burst for a few weeks now. I have noticed that it has developed a black ring around it now and it looks darker in colour. Why is this?
Sun, 31 Jan 2016
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