Gangrene - Symptoms and causes - Mayo Clinic
Causes. Images showing gangrene of the hand and foot Smoking. People who smoke have a higher risk of gangrene. Obesity. Obesity often. Smoking causes gangrene - Image 1. AddThis Sharing Buttons. Share to Print Share to Keywords. Health effects- vascular system/gangrene · Singapore. Other risk factors are smoking and conditions such as Raynaud's All forms of gangrene happen because of a loss of blood supply to a certain.
Severe burns, scalds, and cold: Heat, chemical agents, and extreme cold, including frostbite, can all lead to dry gangrene. Wet gangrene may develop later. There is impaired circulation to the ends of fingers and toes, especially in cold weather. Raynaud's is implicated in some cases of gangrene. Imbalanced blood sugar levels can damage blood vessels and nerves, reducing the oxygen supply to extremities. Wet forms can develop from: Deep, crushing, or penetrating wounds that are sustained in conditions that allow bacterial infection can lead to gangrene.
Examples are war zones and railway, machinery, and street accidents, if lacerated and bruised tissues are contaminated. If the area is infected with bacteria. The sudden blockage of an artery can lead to dry gangrene, but it also increases the risk of infection, and therefore wet gangrene.
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If an immune system is weakened, for example by HIVdiabetes, long-time alcohol or drug abuse, or recent chemotherapy or radiotherapyminor infections escalate more quickly and can become gangrenous. Risk factors for gangrene include: Symptoms The major features of wet or dry gangrene are: Loss of color in the affected body part: The area will become discolored and eventually turn dry and dark. The color will change from red to black in dry gangrene, or it will become swollen and foul-smelling in wet gangrene.
Gas gangrene will produce particularly foul-smelling, brownish pus. Shiny appearance to the skin and the shedding of skin, with a clear line forming between affected and healthy skin.
Pain that is later followed by loss of sensation and an inability to move the part. Fournier's gangrene involves the genital organs. Men are more often affected, but women can develop this type of gangrene as well.
Fournier's gangrene usually arises due to an infection in the genital area or urinary tract and causes genital pain, tenderness, redness and swelling. Progressive bacterial synergistic gangrene Meleney's gangrene. This rare type of gangrene typically occurs after an operation, with painful skin lesions developing one to two weeks after surgery. Risk factors Several factors increase your risk of developing gangrene.
If you have diabetes, your body doesn't produce enough of the hormone insulin which helps your cells take up blood sugar or is resistant to the effects of insulin. High blood sugar levels can eventually damage blood vessels, decreasing or interrupting blood flow to a part of your body.
Hardened and narrowed arteries atherosclerosis and blood clots also can block blood flow to an area of your body. Severe injury or surgery.
Any process that causes trauma to your skin and underlying tissue, including an injury or frostbite, increases your risk of developing gangrene, especially if you have an underlying condition that affects blood flow to the injured area. People who smoke have a higher risk of gangrene. Obesity often accompanies diabetes and vascular disease, but the stress of extra weight alone can also compress arteries, leading to reduced blood flow and increasing your risk of infection and poor wound healing.
If you have an infection with the human immunodeficiency virus HIV or if you're undergoing chemotherapy or radiation therapy, your body's ability to fight off an infection is impaired. Medications or drugs that are injected. In rare instances, certain medications and illegal drugs that are injected have been shown to cause infection with bacteria that cause gangrene.What Is Gangrene- Its Causes- Gangrene Symptoms- Home Remedies
Complications Gangrene can lead to scarring or the need for reconstructive surgery. Sometimes, the amount of tissue death is so extensive that a body part, such as your foot, may need to be removed amputated. Gangrene that is infected with bacteria can spread quickly to other organs and may be fatal if left untreated. Risk factors Tobacco use Cigarette smoking greatly increases your risk of Buerger's disease. But Buerger's disease can occur in people who use any form of tobacco, including cigars and chewing tobacco.
People who smoke hand-rolled cigarettes using raw tobacco may have the greatest risk of Buerger's disease. It isn't clear how tobacco use increases your risk of Buerger's disease, but virtually everyone diagnosed with Buerger's disease uses tobacco. It's thought that chemicals in tobacco may irritate the lining of your blood vessels, causing them to swell. The rates of Buerger's disease are highest in areas of the Mediterranean, Middle East and Asia where heavy smoking is most common.
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Chronic gum disease Long-term infection of the gums also is linked to the development of Buerger's disease. Sex Buerger's disease is far more common in males than in females.
However, this difference may be linked to higher rates of smoking in men. Age The disease often first appears in people less than 45 years old. Complications If Buerger's disease worsens, blood flow to your arms and legs decreases. This is due to blockages that make it hard for blood to reach the tips of your fingers and toes.