Blood Blister: Cause Prevention and Treatment

Blood blister is the nasty cousin of ordinary blister. The difference between the two is that one is filled by blood and the other is filled by water.

A normal blister typically develop when their is friction and irritation to the surface layer of the skin and cause it to separate from the second layer. Fluid fills in the space between these two layers. The fluid is called serum, the water component of blood.

Cause of Blood Blister

A blood blister is not caused by friction but by running accidents. Like when you hit a rock or a hard surface. The impact raptures your blood vessels and the blood fills below your skin.

The only way to prevent blood blister is to run with care.

Treatment of Blood Blister.

Whenever I get a  blood blister, I just do what  my dad did on my finger when I was a kid when my finger got trapped on the car door and I got a blood blister. My dad pierced the the blood blister and drained the blood after the blister had dried.

Home Procedure on Treating a Blood Blister

The procedure is different from treating an ordinary blister. First clean the blister with rubbing alcohol or antibiotic soap and water. Then sterilize a needle over a flame until the tip glows red; allow it to cool, and the puncture a small hole at the edge of the blister. Drain the fluid by applying gentle pressure. Put a bit of antibiotic ointment on the blister and cover with a bandage.

Video Demonstrating How To Treat Blisters With Wine at Home

5 thoughts on “Blood Blister: Cause Prevention and Treatment

  1. ely

    Something you should consider using instead of a regular bandage is a KytoStat bandage. It is as easy to use as a regular bandage, and all you have to do is apply it to the area with pressure. The bandage stops the bleeding immediately. You can find more information at

  2. Jaryn Finch

    As a rower I’m a frequent flier with blisters. The best solution I have found is to sterilize both the area and a very thin needle and then very carefully insert the needle in a subcutaneous matter about 5mm to the side of the blister, to avoid creating any actual opening for air to help separate the layers of skin and insert the needle all the way to the blister. Once the needle is visible within the blister remove it and use a alcohol pad to gently depress the remaining fluid out of the blister. Once you have removed as much fluid as possible swab it again with alcohol and allow it to dry. After drying I recommend applying a liquid bandage such as new skin to the entry points you have created to help seal the skin and prevent the skin from becoming a gaping piece of separated skin. Obviously this is the technique I use on my hands and it has prevented new loose blisters from becoming gaping holes the next day under pressure on a regular basis. Be sure to sterlize all equipment and all the skin involved to prevent infection.

    Good luck!

  3. sdrunner

    That sounds pretty uncomfortable. I have only had the privilege of getting regular, water-filled blisters. And even those aren’t fun to have.

  4. Jimmy

    i gfot a blood blister in a lacrosse game and how long does it take to let the blood blister dry

  5. Isaac976

    I have blood blisters for running, it wasnt caused by hitting a rock or anything like that, I have it on both of my last toes. I even have pics to prove it. I am looking for answers for what have caused it. (was running a Marathon)


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