Skin on a toe or foot turning black, blue, or greenish — or a foot that has suddenly become cold, numb, or severely painful? This is a medical emergency. Go to the nearest emergency room or call 911 now. Gangrene means tissue is dying, and it can threaten the limb and life within hours. At Family Foot & Leg Center our board-certified podiatric surgeons provide urgent limb-salvage and wound care across 9 Southwest Florida locations, and we work closely with vascular specialists and hospitals to save feet and legs. For non-emergency evaluation of poor circulation or an at-risk foot, call (239) 430-3668 or book online.
Gangrene is the death of body tissue, almost always caused by a loss of blood supply, an infection, or both. Dry gangrene develops slowly when arteries are blocked and tissue is starved of oxygen — the skin becomes cold, dark, and shriveled, typically starting at the toes. Wet gangrene occurs when an infected wound or ulcer loses blood flow; it swells, blisters, drains foul fluid, and spreads rapidly, making it a true emergency. Rare, aggressive infections cause gas gangrene and flesh-eating (necrotizing) infections, which advance within hours. In the feet, the most common setting is diabetes combined with poor circulation.
Get emergency evaluation right away for any of these: skin that is turning black, blue, purple, or green; a toe or foot that is cold, pale, numb, or suddenly and severely painful; a wound with foul-smelling drainage; rapidly spreading redness, swelling, and warmth; or fever and feeling generally unwell alongside a foot problem. A sudden loss of blood flow to the leg — marked by pain, coldness, and color change — is a vascular emergency. Do not wait to see if it improves.
Our region has a large population of older adults and people living with diabetes and peripheral artery disease — the conditions most likely to lead to gangrene. Warm-weather habits like open sandals and barefoot walking allow small cuts, burns from hot pavement, or an ingrown toenail to go unnoticed in a foot with neuropathy, where the protective warning of pain is lost. A minor problem in a poorly circulated, insensate foot can progress silently and dangerously.
If you have diabetes, neuropathy, or peripheral artery disease, take any foot injury, discoloration, or non-healing sore seriously and be seen quickly — do not treat it at home. Because neuropathy can erase the pain that would normally warn you, gangrene can develop from something as small as an ingrown nail or a blister. Daily foot inspection, never going barefoot, keeping blood sugar and circulation managed, and prompt professional care of any wound are the most powerful ways to prevent gangrene and amputation.
Gangrene treatment is urgent and coordinated. It centers on removing dead and infected tissue (debridement), restoring blood flow through revascularization or bypass in partnership with vascular surgery, controlling infection with IV antibiotics, and using adjuncts such as hyperbaric oxygen therapy where appropriate. When gangrene is limited and circulation can be improved, our fellowship-trained surgeons use limb-salvage techniques to preserve as much of the foot as possible; when tissue death is extensive or infection is life-threatening, amputation may be necessary to protect the patient. The earlier care begins, the more tissue and function can be saved — which is why prevention and prompt evaluation of at-risk feet are the heart of what we do.
Family Foot & Leg Center has served Southwest Florida since 2005 under the clinical direction of Dr. Kevin Lam, DPM, FACFAS, DABLES, DABPS — named among America’s Top Podiatrists and trained at Temple University, Mount Sinai Medical Center, and Jackson Memorial Health. With advanced wound care, in-house surgical and limb-salvage expertise, hospital and vascular partnerships, and 9 offices from Marco Island to Sarasota, we help protect at-risk feet and act fast when circulation is threatened.
Skin turning dark red, purple, blue, black, or green, usually starting at a toe. Dry gangrene is cold, shriveled, and dark; wet gangrene swells, blisters, drains foul fluid, and spreads fast. Any of these needs urgent evaluation the same day.
Yes. Tissue is dying, and wet or gas gangrene can become life-threatening within hours. Blackening skin, sudden cold or numb painful toes, or foul drainage with fever means go to the ER or call 911 immediately.
Sometimes, when caught early and blood flow can be restored — with debridement, revascularization, IV antibiotics, and hyperbaric oxygen. Advanced gangrene may still require amputation, which is why early treatment matters.
Most often loss of blood supply from peripheral artery disease and diabetes, or infection of a wound. In diabetic feet, neuropathy hides early pain, so a minor injury can progress unnoticed.
For active gangrene, the nearest emergency room immediately. For non-emergency evaluation of poor circulation or an at-risk foot, any of our 9 offices — Naples, Estero, Fort Myers, Cape Coral, Port Charlotte, and Sarasota.
Active gangrene is an emergency — call 911 or go to the ER now. For at-risk feet and circulation care, call (239) 430-3668 or book online 24/7.
Family Foot and Leg Center, PA — Podiatrist Naples FL | Foot Surgery | Heel Pain | Bunion Treatment | Diabetic Foot Care | Sports Podiatry | Serving Marco Island, Naples, Bonita Springs, Fort Myers, Cape Coral, Port Charlotte & Sarasota.
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