Gangrene

Gangrene is a type of tissue death which is caused by lack of blood supply. Most common cause of gangrene on the wasteland are the Zombies.

Getting bitten by a Zombie doesn't turn you into one, though.

Informations
In some cases, such as 'dry' type gangrene can cause affected parts to fall off and it can make surgery unnecessary.

To treat gas gangrene, hyperbaric oxygen therapy is often needed. Unluckily machines for hyperabic oxygen therapy aren't findable in the wasteland.

Antibiotics alone aren't effective for the gangrene due to that they may not penetrate infected tissues at all.

Treatment (Roleplay)
You have to treat the gangrene properly, else way you can die due to it.

Gangrene can be often caused by being bitten by a Zombie, but when it's treated at early stages, it can be cured more easily.

Surgery
Surgery, the way for medics or doctors, can be performed on gangrene and remove all of the dead tissue. The gangrenous tissue must be debrided to hinder the spread of the associated infection, it is often associated with underlying infection. Limbs with gangrenous necrosis occasionally must be severed.

Medication
Gangrene requires treatment with intravenous antibiotics in a nosocomial setting. Circulatory system management is important. Medications can mostly include antiaggregants, fibrinolytics and anticoagulants. Warning: these drugs are rare or possibly unfindable in the wasteland.

Noncritical stages treatment
There are also less effective treatments, used mostly in early stages, or when the gangrene doesn't look severe, but depending on the type of it (wet, dry, gas). One of them are exercises, such as a massage therapy and walking.