Can a hematoma last for years

A hematoma is a collection of blood outside of a blood vessel.

When is it too late to drain a hematoma

It occurs because of an injury to the wall of a blood vessel, allowing blood to seep out into surrounding tissues where it does not belong. Small hematomas may reabsorb quickly, but larger ones can take weeks or months to fully reabsorb.

What is a hematoma?

A hematoma forms when a blood vessel wall is damaged, allowing blood to seep out.

This commonly occurs with trauma or injury, but can also happen spontaneously or with certain medical conditions that affect clotting. When blood pools in the tissues, it forms a reddish-blue mass called a hematoma.

Hematomas can occur almost anywhere in the body, but are most common in skin and muscle.

Some common locations include:

• Scalp – Often caused by a blow to the head
• Ears – Called an auricular hematoma or “cauliflower ear” when on the outer ear
• Eyelids – May cause a “black eye”
• Arms and legs – Often from IV placement or blunt trauma
• Intestines – Can be life-threatening if large
• Under the fingernail or toenail – Called a subungual hematoma

Hematomas vary greatly

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