8 doctors weighed in:

How long does a hematoma takes to form?

8 doctors weighed in
Dr. James Ferguson
Pediatrics
6 doctors agree

In brief: Varies

This will vary some with the location and the size of the blood vessel(s) broken that give rise to the hematoma.
Multiple tiny vessels under a nail may take minutes.A big vessel under the scalp may accumulate a hematoma over several hours.

In brief: Varies

This will vary some with the location and the size of the blood vessel(s) broken that give rise to the hematoma.
Multiple tiny vessels under a nail may take minutes.A big vessel under the scalp may accumulate a hematoma over several hours.
Dr. James Ferguson
Dr. James Ferguson
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Dr. Yale Kanter
Ophthalmology

In brief: Hematome

An acute hematoma develops immediately after the trauma or surgery, whereas a chronic hematoma can develop over time and may be associated with a slow bleeding or extravasation of blood.

In brief: Hematome

An acute hematoma develops immediately after the trauma or surgery, whereas a chronic hematoma can develop over time and may be associated with a slow bleeding or extravasation of blood.
Dr. Yale Kanter
Dr. Yale Kanter
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