In general, superficial hematomas of the skin, soft tissue, and muscle tend to resolve over time. The initial firm texture of the blood clot gradually becomes more spongy and soft as the body breaks down the blood clot, and the shape changes as the fluid drains away and the hematoma flattens.

Are hematomas hard?

A hematoma that forms under the skin will feel like a bump or hard mass. Hematomas can happen anywhere in your body, including in your brain. Your body may break down and absorb a mild hematoma on its own.

How long does a hematoma stay hard?

The swelling and pain of the hematoma will go away. This takes from 1 to 4 weeks, depending on the size of the hematoma. The skin over the hematoma may turn bluish then brown and yellow as the blood is dissolved and absorbed. Usually, this only takes a couple of weeks but can last months.