Blood Blisters

What is a blood blister?

Also known as "cherry moles", blood blisters are blisters that are filled with blood and serum. They are caused by an injury to the tissue and blood vessels just beneath the skin, which occur without piercing the skin. This in turn  prevents the blood escaping, causing it to form a bubble beneath the surface.

Unlike ordinary blisters, which usually form as a result of prolonged rubbing, blood blisters typically occur due to smashing or pinching injuries. They can occur on any part of the body, but are most often found on the hands and feet. Blood blisters can range in size from the size of a pinprick to 1-2 cms.

Blood blister symptoms:

• Blood blisters are dark in colour & often quite painful. If punctured, they will ooze a dark, thick fluid.

Blood blister treatment:

Blood blisters usually don't require treatment, they will usually resolve on their own. If you have one that is severe, becomes infected, doesn't clear up or returns then see your doctor as there may be an underlying issue.

• Don't pop blood blisters, the intact skin provides a barrier. Puncturing the area can introduce bacteria & cause infection.  If the blister does pop, leave the remaining skin intact. Apply some antiseptic to the area. Keep it clean and dry while it heals.

• Apply a cold compress to the area to reduce inflammation and help ease pain.

• Where possible, keep the area elevated.

• If swelling is present, soak the area in epsom salts.

• Apply a soft dressing to help protect the area from damage. Change dressing daily.

Also see:

Blisters

Please note:

The medical articles on this site have not been written by a doctor & should not be considered a replacement for a doctor visit. The articles are provided for informative purposes only.

Always seek immediate medical advice for any problems.

While great care has been made in the creation of these articles, we cannot guarantee the accuracy or omissions on these pages. If in any doubt whatsoever, seek professional medical advice.