A degloving injury occurs when skin and the soft tissue beneath it are torn away from the underlying muscle, bone, or connective tissue. The name comes from the visual resemblance to pulling off a glove: an entire layer of tissue peels away, sometimes in one piece. These injuries range from a small flap of separated skin to the complete stripping of tissue from a limb, and they can also happen internally with no visible wound at all.
How the Injury Happens
Degloving is caused by a shearing force, the kind of sideways pull that drags skin in one direction while the structures underneath stay in place. This tears apart the small blood vessels and lymphatic channels that connect the skin to the tissue beneath it, cutting off blood supply and causing the separated tissue to begin dying. The result is a pocket of damaged, poorly nourished tissue that can no longer sustain itself.
The classic mechanism is a roller-type force, like a hand or limb pulled into industrial machinery, a tire rolling over a limb, or a body dragged along pavement during a motor vehicle accident. Ring avulsion injuries, where a ring catches on something and strips the skin from a finger, are one of the most common everyday examples. Hands, fingers, legs, and the area over the pelvis and hip are the most frequently affected sites.
Open vs. Closed Degloving
There are two broad categories, and they look nothing alike.
Open degloving is the more recognizable type. The skin is visibly torn, and in partial cases a flap of detached skin still covers the underlying structures. In complete open degloving, muscle, tendon, or bone is fully exposed. These injuries are obvious and typically diagnosed on sight. Emergency protocols classify a crushed, degloved, or mangled extremity as a top-level trauma alert, and any soft tissue avulsion larger than about five inches qualifies as a major degloving injury.
Closed degloving is far more subtle. The skin surface looks intact, but underneath, the fatty tissue layer has been sheared away from the firm connective tissue (fascia) that wraps the muscles. Blood and lymphatic fluid pool in the gap, forming a fluid-filled pocket. This specific pattern, first described in 1853, is called a Morel-Lavallée lesion. It most commonly appears over the hip, thigh, or pelvis after a high-energy impact like a car crash or a fall from height.
Closed degloving injuries can appear immediately or not show up for days, depending on how quickly fluid accumulates and the person’s body type. Because the skin looks normal on the outside, these injuries are frequently missed on initial evaluation. When they go undetected, chronic fluid collections can harden into pseudocysts and cause lasting contour changes in the limb.
How Closed Degloving Is Detected
Physical examination is the first step, but closed degloving injuries often need imaging to confirm. Ultrasound can reveal fluid pockets beneath intact skin, appearing as dark or mixed-density areas. MRI is the preferred tool, though, because it can distinguish between fresh and older lesions and clearly show the fluid-filled space between tissue layers on standard imaging sequences. CT scans are also commonly used, particularly when the injury is near a pelvic or hip fracture.
What Treatment Looks Like
The core principle for open degloving is straightforward: remove all tissue that has lost its blood supply, then reconstruct. Surgeons assess the remaining skin by checking whether it bleeds at its edges and whether pressing on it produces a normal color change. Tissue that stays discolored, has visible clotted veins beneath the surface, or doesn’t blanch under pressure is not going to survive and needs to be removed.
Once the wound bed is clean, reconstruction depends on what’s exposed. If there’s healthy tissue underneath, a split-thickness skin graft (a thin layer of skin harvested from another part of the body) can be applied directly. Sometimes the stripped skin itself, if it wasn’t too badly crushed in the original injury, is repurposed as the graft source. When bone or a fracture is exposed, skin grafts alone won’t take. Those cases require a flap procedure, where a thicker section of tissue with its own blood supply is moved to cover the area.
Negative pressure wound therapy, which uses a sealed dressing connected to gentle suction, is frequently used to speed healing and help grafts adhere to the wound bed. For closed degloving injuries, treatment may range from draining the fluid collection and applying compression, to surgically opening the area, cleaning it out, and sometimes using agents that encourage the separated layers to scar back together.
Recovery Timeline
Recovery from a degloving injury is long. For injuries involving the foot or lower leg, the affected area is typically immobilized in a cast or splint for 8 to 10 weeks after surgery to protect the graft and allow initial healing. Physical therapy follows and can last six months or more, gradually restoring range of motion, strength, and the ability to perform daily activities like walking. The overall timeline depends heavily on the size and location of the injury, whether bone or tendon was involved, and how many surgical procedures are needed.
Skin grafts don’t feel or function exactly like original skin. Grafted areas often have reduced sensation, less flexibility, and a different texture. Scarring can be significant, and some people need additional procedures months later to release tight scar tissue or improve contour.
What to Do in an Emergency
If skin has been partially or fully torn away, the priority is controlling bleeding with firm pressure using a clean or sterile dressing. If a piece of tissue has been completely separated, it should be rinsed gently with sterile saline (or clean water if that’s all you have), wrapped in a damp sterile dressing, placed in a plastic bag, and kept cool by placing a cold pack against the outside of the bag. Do not place tissue directly on ice. The separated tissue may be usable as a graft source, so getting it to the hospital with the patient matters.
These injuries often come with other serious trauma. Fractures, deep muscle damage, and nerve injuries are common companions, and the force required to deglove tissue is significant enough that spinal precautions are standard until the spine is cleared.