How Long Does It Take for a Bullet Wound to Heal?

Bullet wound healing is not one process with one timeline. A minor soft-tissue graze can close within a few weeks, while a gunshot fracture routinely takes four months or longer to knit, and nerve damage from the same injury may not fully resolve for a year or more. The enormous variation comes down to what structures the bullet damaged, how much tissue was destroyed, and whether complications like infection set in afterward. The wound you can see on the surface is often the least of it.

What Happens in the First Hours and Days

A bullet does not just punch a hole. It crushes and stretches tissue along its path, creating a zone of damaged muscle, blood vessels, and sometimes bone that extends well beyond the visible wound channel. Within about six hours, the body sends its first wave of immune cells to the site. Over the next day, a second wave arrives to clear dead tissue and debris. Between two and four days after injury, the balance shifts from cleanup to early rebuilding, as the body begins generating cells that will eventually form new tissue or scar.

Animal research on gunshot-type muscle injuries shows that the tissue destruction directly around the wound track is essentially immediate, with full-blown tissue death developing over the first three days. Scar tissue begins forming by about one week, and the process of replacing dead muscle with fibrous scar can continue for six weeks or longer.¹ This early timeline matters because the first week is when infection risk is highest, and surgical decisions about wound closure and debridement are being made.

Bone Fractures From Gunshots

When a bullet breaks a bone, you are looking at a recovery measured in months. A study of lower-extremity fractures caused by gunshots found that half united within four months. The other half experienced delayed healing, and a small number required additional surgery because the bone simply would not knit on its own.²

One important finding from that same study is that retained bullet fragments near the fracture site matter a great deal. When the amount of metal debris near the break was relatively small, the vast majority of fractures healed on schedule. But when the retained fragments were larger, nine out of ten fractures experienced delayed or failed healing.² Interestingly, the degree to which the bone was shattered did not predict healing time as strongly as the amount of metal left behind. This is one reason surgeons weigh the risks of leaving fragments in place versus operating to remove them.

Nerve Damage and the Longest Recoveries

Nerve injuries are often the slowest-healing component of a gunshot wound, and they are more common than many people assume. Even when the bullet does not directly sever a nerve, the shockwave and temporary stretching of tissue can damage nerve fibers along the wound path. Recovery from these injuries is measured not in weeks but in many months, and full recovery is not guaranteed.

A study of gunshot-related nerve injuries in the upper extremity found that about two-thirds of patients showed some improvement in nerve function during follow-up, but only about a quarter achieved full recovery. Among those who did fully recover, the average time was roughly a year, with some patients taking more than two years.³ A separate study of radial nerve injuries from gunshots and explosions among soldiers found that the average time to initial signs of recovery was about eight weeks, and full recovery took an average of six months, though the range spanned from one month to nearly two years.⁴

Not all nerves recover equally. Research covering four decades of peripheral nerve injuries from gunshots found that injuries to the tibial, median, and femoral nerves had the best outcomes, while the peroneal nerve, ulnar nerve, and brachial plexus showed the worst recovery rates.⁵ In practical terms, this means a bullet wound affecting your hand or foot can leave lasting weakness or numbness even after the surface wound has long since healed.

Abdominal and Organ Injuries

Gunshots that penetrate the abdomen present a different picture. In some cases, when imaging shows that the damage to solid organs is limited and the patient is stable, surgeons may opt for non-operative management rather than immediate surgery. One study of patients managed this way after abdominal gunshot wounds reported follow-up periods ranging from under a week to over a year, with a median of about four weeks.⁶ Organ tissue generally heals faster than bone or nerve, but the risk of internal bleeding or missed injury makes these cases some of the most closely monitored in trauma medicine.

Wounds to the face and head follow their own timeline. Soft tissue injuries in these regions heal relatively quickly in terms of wound closure, but complications like infection and excessive scarring are common. One report on craniofacial soft-tissue injuries found postoperative complications in about one in five patients, with infection and keloid scarring being the main problems.⁷ Keloids, the raised, sometimes painful scars that grow beyond the original wound boundary, can develop weeks to months after the initial injury closes and may require their own course of treatment.

Infection and Why It Derails the Timeline

Infection is the single biggest threat to a straightforward healing timeline. Bullets are not sterile, and they can drive clothing fibers, skin bacteria, and debris deep into tissue. Reported infection rates for gunshot wounds vary depending on the study and the severity of the injury, but they commonly fall somewhere between about 4% and over 15%.⁸ At some trauma centers, deeper infections have been reported at even higher rates.⁹

When an infection sets in, it does not just add a week to recovery. It can mean additional surgeries, prolonged courses of antibiotics, and in the case of bone infection, a healing process that stretches from months to a year or more. This is one reason why gunshot wound care almost always includes prophylactic antibiotics, even for injuries that appear relatively clean.

The traditional approach to wound closure also reflects infection risk. Rather than stitching a gunshot wound shut immediately, surgeons have long practiced delayed primary closure, where the wound is cleaned and left open for several days to allow any contamination to declare itself. The wound is then closed once the tissue looks healthy. This technique, refined across two centuries of military and civilian trauma surgery, significantly reduces infection rates compared to closing the wound on the spot.¹⁰

The Hidden Risk of Retained Bullet Fragments

Many gunshot wound survivors live with bullet fragments permanently lodged in their bodies. In most cases, this is medically reasonable, because the surgery to remove deeply embedded metal carries its own risks. But retained bullets are not always inert. A systematic review of lead toxicity from retained bullets found that fragments lodged within a fluid-filled space, like a joint, are at substantially higher risk of causing lead poisoning. The symptoms can appear months or even years after the original injury.¹¹

The delay can be dramatic. In one case, a man developed tremors, nausea, mood disturbances, and significant weight loss thirteen years after sustaining a gunshot wound to the ankle. Blood testing revealed severely elevated lead levels from the fragment that had been sitting in his joint for over a decade.¹² Factors that increase the risk include the number of fragments, whether a fracture is present nearby, and the location of the retained metal. Anyone living with a retained bullet fragment, especially one near a joint, should be aware that new symptoms years later could be related to the old wound.

Chronic Pain After the Wound Has Closed

For many survivors, the wound eventually closes, the fracture heals, and the surgical sites scar over, yet the pain persists. Chronic pain is one of the most common and underappreciated long-term consequences of gunshot wounds. One large study found that roughly 70% of gunshot wound patients developed chronic pain.¹³ That is not a small minority of severe injuries; it was the majority, regardless of whether the wound involved one body part or three. The study also found evidence of neuropathic pain, the kind caused by nerve damage rather than ongoing tissue injury, suggesting that for many patients the nervous system itself has been permanently altered.

Another review of gunshot-related peripheral nerve injuries reported chronic pain in close to half of patients, with no significant difference between upper and lower extremity wounds.¹⁴ The variation between studies likely reflects differences in how chronic pain is defined and measured, but the consistent message is that ongoing pain is the rule rather than the exception. This is worth knowing if you are supporting someone through recovery, because the timeline for “healing” as measured by wound closure and bone union can be very different from the timeline for returning to a life without daily pain.

Psychological Recovery Runs on Its Own Clock

The physical wound is only half the picture. A study that followed gunshot survivors for a median of nearly six years after injury found that almost half screened positive for probable PTSD. Physical and mental health scores remained below average population levels years later. Employment dropped by about 14 percentage points compared to pre-injury levels, and combined alcohol and substance use rose by roughly 13 percentage points.¹⁵

These numbers paint a picture of recovery that extends far beyond what any surgical timeline can capture. The psychological wound does not follow the same healing phases as muscle or bone. Some survivors develop symptoms within days, while others experience a delayed onset months later. Access to mental health care, social support, and the circumstances of the shooting all influence the trajectory. The physical therapy appointments may end, but for many people, the psychological work is just getting started.

What Rehabilitation Actually Looks Like

Physical rehabilitation after a gunshot wound varies as much as the injuries themselves. For wounds involving the extremities, the goals are usually restoring range of motion, rebuilding muscle strength, and retraining coordination. Hand injuries, in particular, demand intensive and prolonged therapy because of the fine motor control required for daily tasks. A case study of a patient with a gunshot wound to the hand described an outpatient rehabilitation program involving manual therapy, therapeutic exercises, and neuromuscular retraining, which is typical for these injuries.¹⁶

For patients with more severe injuries, emerging approaches like early aquatic therapy have shown promise. Military survivors of gunshot wounds and blast injuries who received pool-based therapy within the first month after injury demonstrated functional improvements without adverse events, even though some had open wounds that required waterproof dressings during sessions.¹⁷ Water-based therapy can allow patients to begin moving damaged limbs earlier than land-based exercise would safely permit, because buoyancy reduces the load on healing tissue.

Advanced wound management tools also play a role in shortening recovery times. Vacuum-assisted wound closure, which uses gentle negative pressure to draw fluid out of a wound and promote blood supply and new tissue growth, has become a common bridging therapy for complex or infected gunshot wounds.¹⁸ These devices are often used in the gap between initial surgical cleaning and definitive wound closure, accelerating the formation of healthy granulation tissue so the wound can ultimately be closed or grafted sooner.

Why Some People Heal Faster Than Others

Even two people with nearly identical gunshot wounds can heal on very different timelines. Age is one of the most predictable factors: younger patients generally heal faster because their inflammatory and regenerative responses are more robust. Diabetes slows wound healing through multiple pathways, making infections more likely and tissue repair less efficient.¹⁹ Chronic stress, poor nutrition, and smoking also impair healing, though these factors are less well-quantified in the specific context of ballistic injuries.

The characteristics of the bullet and the gun it came from also matter, though this is often misunderstood. Higher-velocity rounds, like those from rifles, create larger zones of tissue destruction than lower-velocity handgun rounds. This does not just mean a bigger hole; it means more dead tissue, a larger area of compromised blood supply, and a longer inflammatory phase before rebuilding can begin. Where the bullet ends up also matters. A through-and-through wound that exits the body leaves two holes but often causes less long-term complication than a bullet that fragments inside, leaving metal scattered through the tissue.

Emerging Approaches to Nerve and Muscle Repair

For the most stubborn injuries, particularly nerve gaps where a section of nerve is simply missing, researchers are developing bioengineered alternatives to traditional nerve grafting. One approach uses synthetic tubes filled with specially designed nanofibers that guide nerve cells to grow across a gap. In animal testing, these constructs produced motor and sensory recovery comparable to traditional nerve grafts taken from the patient’s own body, and recovery was significantly faster than with empty tubes alone.²⁰ Research into growth-factor-enhanced nerve conduits and stem cell therapies is also underway, though these remain experimental.²¹

On the muscle side, the challenge is that large-volume muscle loss from a gunshot often heals with dense scar tissue rather than functional muscle fibers. Current surgical techniques can transfer muscle from other parts of the body, but the transferred tissue rarely performs as well as the original. The field of regenerative medicine is working on scaffolds and cell-based approaches that might one day coax the body into rebuilding actual muscle in these defects rather than just filling them with scar. That research is still early, but it represents a real shift in ambition: not just closing the wound, but restoring the tissue that was lost.¹