A member asked:

I got the hpv vaccine 2 weeks ago and i have a hard lump under my skin. whats this mean?

A doctor has provided 1 answer

Hard lump: Hard lump at injection site is a small collection of blood called a hematoma. This occurs when the tip of the needle grazes a small blood vessel called a capillary. It isn't dangerous and will resolve on its own.

Answered 3/28/2017

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