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Will my untreated cut cause gangrene?

I got a bad cut on my hand and did not have stitches. It healed okay I think, but its still kind of weird looking after two weeks. Could I get gangrene? What is gangrene and how do you get it from a cut?
In the vast majority of cases, untreated cuts do not cause gangrene. Gangrene occurs when there is disruption of blood flow to a tissue for a prolonged period of time causing death of that tissue. For a cut to cause this, it must be severe enough that a major blood vessel was compromised and was no longer able to deliver blood to the surrounding tissue. While I cannot tell you for sure if your hand is fine (since I can't see it), but I can tell you that the fact that it healed okay is very reassuring. The most common cause of gangrene today is diabetes. Long standing diabetes can has the ability to destroy small blood vessels in the feet and hands. When injuries such as cuts or ulcers occur in these areas, there many not be enough blood flow to heal the wounds. In these cases, gangrene can result in the need for amputation of the effected area. Since you are concerned about the wound, you should schedule an appointment with a primary care physician. He or she can examine the wound and make sure that no additional wound care is necessary. Hopefully, your cut will continue to heal and leave a minimal scare without impairing the function of your hand.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under Zocdoc’s Terms of Service.

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