That stubborn blackhead may actually be a sebaceous filament. Fact checked by Isaac Winter Medically reviewed by Hadley King, ...

Medicare covers sebaceous cyst removal when medically necessary. This includes cases where the cyst causes bleeding or pain, shows signs of inflammation or infection, or has recently gotten larger.

Q: I had mild acne for years and have been taking care of it myself since I was a teenager. Now I've been told I have sebaceous cysts, which are much worse. Would you please explain what sebaceous ...