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A member asked:

I have a blue nodule under my skin on my back. sometimes if i'm sitting my back against a hard surface it hurts. what is it though?

4 doctors weighed in across 2 answers

Biopsy: You should see your dermatologist to be evaluated for a biopsy. The worse thing it could be is a melanoma skin cancer.

Answered 9/29/2016

5.7k views

Thank

See a dermatologist: Blue nevus is benign. Melanoma is a threat to your life. Find out which you have.

Dr Rothman and 2 doctors agreed

Answered 1/9/2019

5.4k views

Thank

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Groin hernias lapro fix 3 wks ago. Left=redo, Right=initial. Both LOOK flat, but on right feels like hard ~1.5 convex nodule just under skin. Normal?

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