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What should I do if I scraped one of my moles off?

Fell off of my bike yesterday and got a big abrasion on my arm. It also scraped off one of the moles on my arm. Is this dangerous? Will the mole heal with the rest of the skin or should I see a dermatologist?
Moles are just collections of pigmented cells called melanocytes living inside of the skin. As such, they are a normal part of the skin, and you don't have to do any thing special about the fact that a mole was damaged along with other parts of your skin when you scraped your arm. You will want to keep the area of the scrape clean and dry as it heals. I would suggest that you apply a small amount of an antibacterial ointment to prevent infections. Avoid picking or manipulating any scabs that form, as that may lead to scarring or prevent optimal healing. If you see any evidence of spreading redness, warmth, or pus these may be signs of a starting infection, and you should see your primary care doctor. When you have totally healed up, the mole may come back. This will depend on how deep the scrape was and whether it removed all of the melanocytes that formed the mole. I suspect that, unless the scrape was very deep, that most of the melanocytes are still there and that the mole will come back just as before. Please talk to your primary care doctor for more information about how this could affect you.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under Zocdoc’s Terms of Service.

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