Gangrene

The Basics

Written by the doctors and editors at UpToDate пїЅ пїЅ

What is gangrene? " пїЅ Gangrene is a condition in which body tissue dies from not getting enough blood. It can cause changes in skin color, numbness or pain, swelling, and other symptoms. Gangrene is a serious condition. It can be life threatening. пїЅ пїЅ

There are several different types of gangrene: пїЅ пїЅ

Dry gangrene " пїЅ In this type, the tissue dries up and falls off. It is most common on the ends of the fingers and toes.
Wet gangrene " пїЅ In this type, the tissue swells up and gets blisters.
Gas gangrene " пїЅ This type happens when bacteria infect tissue and cause gas bubbles inside it.

What are the symptoms of gangrene? " пїЅ Symptoms depend on the type of gangrene. пїЅ пїЅ

Symptoms of dry gangrene can include: пїЅ пїЅ

Hard, dry skin and tissue
Changes in skin color " пїЅ Skin might look pale or very dark
Skin that feels cooler than normal

It can be easy to tell the tissue with dry gangrene from healthy tissue. The area with dry gangrene looks very different from the healthy tissue. пїЅ пїЅ

Symptoms of wet gangrene can include: пїЅ пїЅ

Tissue that looks wet
Swelling
Blisters
Skin that looks dark
Bad smell

Symptoms of gas gangrene can include: пїЅ пїЅ

Severe pain
A numb or heavy feeling in the area
Confusion
Feeling sick, like with the flu
Fever
Changes in skin color " пїЅ Skin can turn brown, red, or purple.
Blisters " пїЅ These can look clear or turn red, purple, or blue.
Tissue that makes a crackling sound when you press on it

Should I see a doctor or nurse? " пїЅ See your doctor or nurse right away if you have a hard, numb area on a finger or toe. If you have diabetes, tell your doctor or nurse if you notice any skin changes on your feet or have a foot wound that does not heal. You might need treatment to prevent gangrene. пїЅ пїЅ

If you had surgery or an injury, see your doctor or nurse if your pain gets worse in that area, the skin changes color, or you start to feel sick. These could be signs of an infection that could cause gangrene. пїЅ пїЅ

Will I need tests? " пїЅ Maybe. It depends on the type of gangrene and your situation. The doctor or nurse might be able to tell if you have dry or wet gangrene from doing an exam and learning about your symptoms. пїЅ пїЅ

You might also have the following tests: пїЅ пїЅ

Imaging tests, such as a CT scan or MRI " пїЅ These tests create pictures of the inside of the body. They can show gas in the tissue. This can be a sign of gas gangrene.
Blood tests " пїЅ These tests can look for signs of infection. The results can also tell doctors if gangrene or a different condition is causing symptoms.
Tests to measure blood flow " пїЅ These tests can show doctors where problems are happening in blood vessels and how serious the problems are.

How is gangrene treated? " пїЅ Treatments include: пїЅ пїЅ

Cutting away dead or dying tissue " пїЅ This can sometimes keep gangrene from spreading. A doctor or nurse might need to do this every day for a while.
A kind of surgery called "amputation " пїЅ " пїЅ In this surgery, a doctor removes toes, feet, or other body parts that have gangrene.
Antibiotics given into a vein through a thin tube (called an "IV " пїЅ)

Can gangrene be prevented? " пїЅ If you have diabetes, you can reduce your chances of getting gangrene by keeping your blood sugar close to normal and taking good care of your feet. Having high blood sugar for a long time can cause nerve damage in your feet. You might not notice a foot injury, and then the injury can get infected. This can cause gangrene. пїЅ пїЅ

All topics are updated as new evidence becomes available and our peer review process is complete. пїЅ пїЅ

This topic retrieved from UpToDate on: Nov 04, 2014. пїЅ пїЅ

Topic 83287 Version 3.0 пїЅ пїЅ

Release: 22.8 - C22.208 пїЅ пїЅ

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Gangrene

The Basics

Consumer Information Use and Disclaimer

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