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What causes blood blisters & is it ok to pop them?

2 doctors weighed in
Dr. Michael Fisher
Dermatology

In brief: Blood blisters

Blood blisters are a type of blister that is filled with blood rather than the fluid commonly associated with blisters.
Blood blisters are caused by a rupture of the blood vessels underneath the skin’s surface. This rupture is usually caused by some form of trauma, such as pinching.

In brief: Blood blisters

Blood blisters are a type of blister that is filled with blood rather than the fluid commonly associated with blisters.
Blood blisters are caused by a rupture of the blood vessels underneath the skin’s surface. This rupture is usually caused by some form of trauma, such as pinching.
Dr. Michael Fisher
Dr. Michael Fisher
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Dr. Colin Kerr
Family Medicine

In brief: Blood blisters

Blood blisters are normally caused by minor trauma--a good example is when you hit your finger with a hammer when missing the nail.
These are not as prone to infections as blisters from excessive wear (eg, heel blisters) since the overlaying skin has not been chronically inflammed. So it is ok to pop them with sterile sharp point. If you do, keep covered afterwards for at least 24 hrs.

In brief: Blood blisters

Blood blisters are normally caused by minor trauma--a good example is when you hit your finger with a hammer when missing the nail.
These are not as prone to infections as blisters from excessive wear (eg, heel blisters) since the overlaying skin has not been chronically inflammed. So it is ok to pop them with sterile sharp point. If you do, keep covered afterwards for at least 24 hrs.
Dr. Colin Kerr
Dr. Colin Kerr
Thank
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