A person struck by lightning can look strikingly different from what most people imagine. Rather than the charred devastation of a house fire, the visible aftermath tends to be a strange patchwork: fern-like red tracings on the skin, singed or shredded clothing, burns clustered around metal objects like zippers and necklaces, and limbs that appear pale and lifeless. The specifics depend on the type of strike and how the current traveled across or through the body, and some of the most dramatic-looking marks vanish within a day.
Lichtenberg Figures, the Signature Mark
The most visually distinctive feature of a lightning strike is the Lichtenberg figure, sometimes called a “lightning flower” or ferning pattern. These are branching, tree-like red marks that spread across the skin, often covering large areas of the torso, back, arms, or legs. They look almost like a fern leaf pressed onto the body or like the fractal pattern of a river delta viewed from above. The marks are not burns in the traditional sense. Biopsy specimens of Lichtenberg figures reveal no damage to the outer skin layers, deeper tissue, nerves, or collagen, which supports the idea that they are a surface electrical phenomenon rather than a thermal injury.1Injury. Lightning and Lichtenberg figures – Section: Discussion
The marks typically appear within an hour of the strike and fade completely within about 24 to 36 hours, leaving no scar or lasting skin change.1Injury. Lightning and Lichtenberg figures – Section: Discussion This transience surprises many people who assume the patterns are permanent. They are not. Lichtenberg figures show up on both survivors and the deceased, and they do not follow the path of any blood vessel or nerve. One case report describes a death initially investigated as a murder by gunshot; only during autopsy did the Lichtenberg figures reveal the true cause.2Legal Medicine. Investigation of the skin lesions in lightning strike death Because the marks fade so quickly, emergency physicians and forensic investigators have a narrow window to document them.
Burns That Follow the Metal
Lightning current tends to flash over the outside of the body, a phenomenon called “flashover,” rather than passing entirely through internal tissue the way contact with a downed power line might. But wherever the current encounters metal, things get ugly fast. Jewelry, belt buckles, zippers, underwire bras, and coins in pockets can all superheat in a fraction of a second, producing deep, localized burns that trace the outline of the object.
One well-documented case describes a silver necklace that fused under the flash-over current, producing a full-thickness linear burn across the victim’s neck and chest with silver welded throughout the wound.3PubMed. An unusual case of lightning injury: a melted silver necklace causing a full thickness linear burn In another case, a silver necklace chain vaporized entirely, leaving deep burns on the back of the neck, while brass components on the victim’s zipper and a bead necklace showed crater formations, fissuring, and charring.4PubMed. A unique case of direct lightning strike The visible result is a burn pattern that maps precisely onto the victim’s accessories: a line where a chain lay, a rectangular mark where a belt buckle sat, circular spots under buttons.
These contact burns are often the most severe skin injuries on a lightning victim, far worse than the Lichtenberg figures or the superficial flash burns on exposed skin. They are also some of the most forensically useful, because the pattern of the burn tells investigators exactly what the person was wearing and where metal made contact.
Metal Permanently Embedded in the Skin
In some cases, the interaction between lightning and jewelry goes beyond surface burns. The extreme heat can vaporize or melt metal, driving microscopic particles deep into the skin. A biopsy taken six months after one strike found gold particles of various sizes scattered through the dermis and down into the subcutaneous fat layer. Under electron microscopy, the gold appeared as globules, irregular granules, tiny tubules, and tangled tracks, some embedded inside immune cells that had tried to engulf them, others sitting loose in the connective tissue.5PubMed. Detection of gold particles in the neck skin after lightning stroke with evaporation of an ornamental chain The analysis also detected copper and silver alongside the gold, consistent with the alloy of the necklace that had been destroyed.
This metallization is essentially a traumatic tattooing, where metal from an evaporated ornament becomes a permanent deposit in the tissue. It is one of the few lasting visible marks a lightning strike can leave on the skin, in contrast to the fleeting Lichtenberg figures.
What Happens to Clothing and Hair
One of the first things bystanders and first responders notice is the state of the victim’s clothing. Lightning can blow shoes off feet, shred shirts, and leave fabric hanging in tatters. In a mountainside incident that killed four people, all victims had burnt and torn clothes, along with mechanical damage from rock fragments that had been blasted loose by the strike.6Legal Medicine. The various pathological manifestations of a lightning strike exemplified in a single four-fatality incident An autopsy of a witnessed lightning death found torn clothing, singeing of body hair, and superficial dry burns on the skin.7Sri Lanka Journal of Forensic Medicine, Science & Law. Unusual bone injury in a direct lightning strike: review of a witnessed lightning-related death
The tearing is largely mechanical rather than thermal. Lightning generates a pressure blast wave, and the resulting overpressure can rip fabric and hurl a person backward. Hair singeing is thermal, caused by the brief but extreme heat of the current flashing over the body’s surface. Eyebrows and arm hair may be singed off on the side of the body closest to the strike path, while hair on the opposite side may be untouched. The combined picture of a person with shredded clothing, singed hair, and no obvious wound can be baffling to onlookers who have never seen the aftermath of a lightning strike.
The Blast Wave and Blunt Trauma
Lightning is not just an electrical event. The rapid superheating of air along the strike channel creates thunder, and at close range that acoustic shockwave becomes a concussive blast. Blunt force trauma and barotrauma injuries are commonly found on lightning victims, and the pressure wave carries real injury potential of its own.8PubMed Central. The Explosive Effects of Lightning: What are the Risks?
The shockwave can fracture bones, rupture eardrums, and throw a person several meters. In the witnessed lightning death mentioned above, the autopsy found a scalp split with an associated linear skull fracture, attributed to the pressure blast rather than to a fall.7Sri Lanka Journal of Forensic Medicine, Science & Law. Unusual bone injury in a direct lightning strike: review of a witnessed lightning-related death This mechanical dimension is easy to miss if you are only thinking about electricity and heat. A victim can appear to have been in an explosion or a physical assault, with bruising, fractures, and contusions that do not look electrical at all. That overlap has led to confusion in forensic investigations, where the cause of death was not immediately obvious.
Pale, Pulseless Limbs
One of the most alarming sights after a lightning strike is a limb that suddenly looks dead. A condition called keraunoparalysis can cause one or more arms or legs to become paralyzed, pale, cold, and pulseless within minutes of the strike. The affected limb may turn bluish and feel completely numb to the victim.9PubMed Central. Simulation Lightning Strike – Section: DEBRIEFING AND EVALUATION PEARLS In one documented case, a patient’s left foot was pulseless, pale, cold, and showed no capillary refill.10PubMed. Keraunoparalysis after lightning injury with transient ischaemia and paralysis of an extremity
The mechanism behind this is thought to involve a massive surge of stress hormones from the autonomic nerves in the affected limb, which triggers extreme constriction of the arteries. Blood flow effectively shuts down, and the limb looks and feels as though it has lost its blood supply entirely.11PubMed. Keraunoparalysis, a ‘specific’ lightning injury For a bystander or even a paramedic, this can mimic the appearance of a limb with a severed artery or a devastating crush injury. The good news is that keraunoparalysis is temporary. It usually resolves within minutes to hours, sometimes as quickly as half an hour, and often leaves no lasting damage.9PubMed Central. Simulation Lightning Strike – Section: DEBRIEFING AND EVALUATION PEARLS But in the acute aftermath, the sight of a mottled, lifeless-looking limb adds to the overall impression that the victim is far more injured than they may actually be.
Swollen Muscles and Compartment Risk
Even when external burns are relatively minor, the muscles beneath the skin can be damaged and begin to swell. If swelling within the tight fascial compartments of a limb builds enough pressure, it can compress blood vessels and nerves, a surgical emergency known as compartment syndrome.12Handbook of Clinical Neurology. Lightning and thermal injuries Visually, the limb becomes tense, shiny, and distended. This is part of why lightning injuries are deceptive: the skin may show only superficial burns while serious damage brews underneath. A couple struck by lightning while walking arm-in-arm both presented with characteristic lightning burns that appeared superficial, yet both required hospital admission for monitoring because serious internal electrical injuries are common despite the mild-looking exterior.13PubMed Central. Lightning Burns and Electrical Trauma in a Couple Simultaneously Struck by Lightning
What Lightning Does to the Eyes
The eyes are rarely discussed in popular accounts of lightning strikes, but they are frequently affected. The most well-known eye injury is lightning-induced cataract, which develops when the electrical energy causes proteins in the lens to coagulate, creating opaque patches that cloud vision. These cataracts do not typically appear immediately. They usually begin forming anywhere from one month to a year after the strike, and in some people they remain stable for years before gradually worsening.14PubMed Central. Lightning-induced cataract with concomitant optic nerve damage – Section: Discussion Corneal swelling is another documented injury, sometimes visible as a hazy, clouded appearance of the front surface of the eye.15PubMed Central. Lightning Injury to Eye: Brief Review of the Literature and Case Series – Section: Discussion
Because cataracts develop on a delayed timeline, a lightning survivor’s eyes might look perfectly normal in the emergency department. The visual consequences only become apparent weeks or months later, when the lens opacities grow large enough to interfere with sight. This delay means that eye examinations are recommended as part of long-term follow-up for any lightning victim, even when the initial assessment looks reassuring.
How the Overall Picture Differs from Hollywood
Movies and cartoons tend to depict a lightning victim as blackened and smoking, with a skeleton briefly visible through translucent skin. The reality is almost the opposite in most cases. Because the bulk of the current flashes over the body’s surface rather than passing entirely through it, the internal damage can be far more dangerous than the external appearance suggests. Most external signs are concentrated on clothing, jewelry, hair, and surface skin markings rather than deep, visible tissue destruction.
The combination of findings on a typical victim might include: Lichtenberg figures that look dramatic but are already fading, singed patches of hair, one or two localized burns where metal touched skin, shredded or partially removed clothing, and a limb that appears pale and lifeless but is actually recovering on its own. Forensic investigators have noted that most macroscopic signs of lightning are on the external aspects of the body, on clothing, shoes, jewelry, and belts, which becomes critical in cases with no clinical history available.16PubMed. Injuries and deaths from lightning – Section: Chief macroscopic pathology A victim found outdoors in torn clothing with metal burn patterns and fading Lichtenberg figures tells a clear story. A victim found without those contextual clues can be far harder to identify.
Why Entry and Exit Wounds Are Less Clear-Cut Than You Might Think
People often ask about entry and exit wounds, imagining something like a bullet hole where the bolt entered and another where it left. Lightning does not always work that way. With high-voltage electrical injuries from industrial or power-line contact, there is often a clear entry point and a distinct exit point, and the exit wound tends to show more extensive damage.17Journal of Trauma and Injury. Similarities and differences between lightning and electrical injuries: two case reports – Section: DISCUSSION Lightning strikes, however, frequently involve flashover, side splash, or ground-current mechanisms where the electrical path across the body is diffuse and unpredictable. In many lightning cases, there is no identifiable entry or exit wound at all, just scattered surface markings, metal burns, and the temporary Lichtenberg pattern.
This is part of why lightning deaths have sometimes been mistaken for assault or other causes. Without the telltale ferning pattern or burned metal accessories, the external findings can be ambiguous, and the pattern does not always fit the neat “entry-to-exit” framework that people expect from electrical injuries.
The Forensic Puzzle When a Body Is Found
When someone is found dead outdoors and lightning is suspected, pathologists rely on a constellation of clues rather than a single diagnostic sign. The four main energy components of lightning, which are light, heat, electricity, and blast pressure, each leave their own type of mark.16PubMed. Injuries and deaths from lightning – Section: Chief macroscopic pathology A mountainside incident involving four fatalities illustrates the range. Each victim showed burnt and torn clothing, while some had current marks or Lichtenberg figures and others had primarily mechanical damage from rock debris dislodged by the blast.6Legal Medicine. The various pathological manifestations of a lightning strike exemplified in a single four-fatality incident No two bodies looked identical, even though all four were struck in the same event. The variability arises from differences in body position, clothing, proximity to the primary strike channel, and what metal each person was carrying.
Investigators piece together the story by combining external body findings with weather records, witness accounts, and the condition of belongings. A melted zipper, a magnetized belt buckle, or microscopic metal particles embedded in the skin can each serve as confirmatory evidence. In remote or wilderness settings where the body may not be found immediately, the rapid fading of Lichtenberg figures means that one of the most recognizable signs may already be gone, making the forensic analysis more reliant on clothing damage and metallization patterns.
What Survivors Look Like Weeks and Months Later
In the short term, a survivor’s most visible marks are the Lichtenberg figures, any metal-contact burns, and singed hair. Within a day or two, the ferning pattern disappears. Superficial flash burns heal relatively quickly. What remains visible over weeks and months depends on severity. Metal-contact burns may leave permanent scars, especially where jewelry was welded into the skin. The gold or silver particle deposits described earlier remain in the tissue indefinitely, creating a kind of involuntary metallic tattoo that only shows up under microscopic examination rather than to the naked eye.5PubMed. Detection of gold particles in the neck skin after lightning stroke with evaporation of an ornamental chain
The delayed development of cataracts means that a survivor’s appearance may change subtly over the following year, with the pupils gradually developing a whitish or cloudy opacity as the lens proteins continue to coagulate.14PubMed Central. Lightning-induced cataract with concomitant optic nerve damage – Section: Discussion Scarring from any deep burns or from surgical intervention for compartment syndrome may also develop. But for many survivors who escaped with only Lichtenberg figures and minor flash burns, the external evidence of the strike essentially vanishes within weeks, leaving a story that is hard to believe without the photographs taken in the emergency department.