Firework or sparkler burns can have large effects on our hands' range of motion

See images of medical cases of firework injuries shared on this 'Instagram for doctors'

Included photos include scans of missing or damaged digits, a chunk of missing flesh, a facial injury from a homemade firework in a glass bottle that exploded in the patient's hand before it was thrown, and an injury where a patient's finger bone flew into someone's leg.

See images of medical cases of firework injuries shared on this 'Instagram for doctors.' (Warning: Graphic content)

Fireworks-related ER visits in 2024 increased by 52% as compared to the prior year

In 2023, there were 9,700 such injuries, but the number was 14,700 in 2024, according to analysis from the Consumer Product Safety Commission. Personal use of fireworks grew significantly during the pandemic, in part due to cancellations of public display shows, and that use has apparently continued—and prompted more injuries. What's more, the Census Bureau indicates that firework imports increased by around 19% between 2023 and 2024.

11 people died from firework injuries in the US in 2024

Most of those deaths involved misuse of the explosives and device malfunctions or misfires. That fatality count doesn't include the almost 15,000 people who received treatment in the emergency room due to firework-related injuries. More than a third of all the injuries in 2024 were burns, underscoring the risks of using these explosive devices.

Beyond burns, fireworks can harm respiratory, auditory, and visual health

While mishandling fireworks can cause severe burns and loss of appendages, there are also risks for viewers of displays. Released particulate matter can cause the surrounding air to resemble wildfire smoke, and the explosions can cause hearing loss and damage to the corneas.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

11 people died from firework injuries in the US in 2024.

Fun family fireworks turn ballistic

The American Pyrotechnics Association estimates that over 10,000 injuries result each year from fireworks, close to three-quarters of which occur around the Fourth of July. This video shows just one rather explosive miscue.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

Fireworks make a loud booming sound after exploding due to air expanding faster than the speed of sound.

Learn how your body is, scientifically, like a firework with its own slow, controlled burn.

Visualize the components of fireworks

This article provides animated diagrams depicting how different parts of fireworks function. The elements work together through timed mechanisms to produce desired effects.

Disney Research developed a haptic interface where you can feel a fireworks display

Disney’s “Feeling Fireworks” uses water jets and a latex screen to replicate fireworks for blind individuals. Such technology may also provide inclusive experiences for the deaf community, though as of 2024, there are no plans to implement them in Disney parks.

Leprosy doesn't cause fingers or toes to fall off

The nerve damage that results from infection sometimes causes loss of feeling in extremities so injuries like cuts or burns may be missed. In such cases, resulting infections can lead to digit loss. Fingers or toes can also appear to shorten with this disease because nerve damage can sometimes make muscles in fingers and toes so weak that they're reabsorbed by the body.

The trend of onstage mishaps

In the past few years, performers have seen a rise in onstage accidents. While artists are doing their jobs, they face risks of dangerous falls, flying objects, and audience aggression. This article aims to explain why this trend may be occurring and emphasizes the importance of concert-going etiquette and adequate security.

Skin wounds and burns heal fastest if they occur during the day

Skin cells responsible for healing wounds work more quickly during the daytime, underscoring that the timing of an injury greatly influences recovery time, according to 2017 research. Nighttime burns took an average of 11 days longer to heal than burns incurred during the day. (Some readers may experience a paywall.)

See how a 2018 fire in Paradise, California, exposed the limits of emergency coordination

This Frontline documentary shows how the Camp Fire stretched and ultimately overwhelmed the complex web of agencies involved in emergency response, including fire suppression, 911 dispatch, law enforcement, and emergency management, with catastrophic results.

Pickleball injuries were responsible for $350M in medical costs in 2023

Unsurprisingly, picklers over 50 account for 90% of the injuries, with the most common being sprains, strains, and fractures. Experts say a substantial pregame warm-up can prevent most injuries.

Learn more about the history of fireworks, which dates back to an accidental invention during an alchemist's quest for information about immortality.

Why Friday surgeries are (likely) riskier

Scheduling surgery on a Friday may lead to more complications—up to 5% more often—compared to surgeries performed after the weekend. The research was conducted by a team from the United States and Canada and analyzed data from over 450,000 patients who underwent common surgeries in Ontario between 2007 and 2019. Check out their findings here.

Why cartoons only have four fingers

Ever notice cartoon characters only have four fingers? There’s a surprising reason why and it goes back to the first Mickey Mouse cartoons. From saving money to cultural taboos, here’s why animators draw hands this way.

Metal fragments can create glowing rings when sand chips them off helicopter blades

The Kopp-Etchells effect—named after two soldiers who died in action in Afghanistan—may occur when kicked-up material shaves off fragments from a helicopter blade's abrasion strip. Due to a property called pyrophoricity, the fragments react with air and ignite, producing halos.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

Phantom limbs were first documented in the 16th century by a French military surgeon

Ambroise Paré, the military surgeon, observed this phenomenon among soldiers who'd lost limbs, yet the term wasn't formally coined until hundreds of years later, by Silas Weird Mitchell, an American Civil War surgeon.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

There are more than 200,000 cases of HFMD annually, and there's no cure

The highly contagious disease is caused by several viruses and it primarily affects little kids. It causes red spots in and around the mouth, hands, feet, and even the buttocks. They often become painful water-filled blisters that can burst and cause small ulcers. Eating and drinking is uncomfortable for about a week so patients need to be careful not to become dehydrated.

This Texas city is having an 'amputation crisis'

Texas has some of the highest rates of diabetes-related amputations in the country. Towering over the rest of the Longhorn state is the city of San Antonio, where men are nearly three times as likely to lose a limb to diabetes than women. This article explains how men in this majority Mexican American city are genetically and culturally at risk of Type 2 diabetes, a disease involving issues with the blood sugar-regulating hormone insulin.

About half of physicians report feeling burned out

Burnout is often considered a disorder of caregivers, with teachers, doctors, nurses, and social workers reporting high levels of burnout. Among K-12 education professionals, 44% reported experiencing burnout in 2022. Reported rates from emergency care workers is about 60%, the highest in the field.

The FIRE movement stands for ‘financial independence, retire early’

FIRE followers typically prioritize high savings rates, relatively frugal living, and aggressive investing strategies in an effort to work less and enjoy life more in the long term. They range from low-income manual laborers to high-income tech workers and doctors.

There are more than a dozen types of different emergency medicine specialties

This video details medical subspecialties in emergency medicine, including medical toxicology, pediatric emergency medicine, undersea and hyperbaric medicine, hospice medicine, and more. It discusses where these types of specialists may work, including beyond a hospital setting.

The collapse of gas bubbles in the joint synovial fluid causes 'cracking' knuckles

The human population can be divided into two categories: those who crack their knuckles and those who don't. Do you know the technical term for this phenomenon is "tribonucleation?" What actually happens inside a knuckle when it pops? This visual explainer breaks down finger joint popping in real time.

The origin of LASIK eye surgery, from a lab incident to federal funding and widespread use

After a University of Michigan engineering student suffered retinal burns from an ultrashort pulse laser, researchers realized it could be used to reshape the cornea and improve a person's vision with greater precision than a scalpel and earlier laser technologies. Agencies, including the National Science Foundation, the National Institutes of Health, and the Department of Energy, provided funding to develop and commercialize the procedure.

Someone suffers from a stroke every 40 seconds

Every 40 seconds, someone in the US experiences a stroke—and every minute without treatment destroys millions of brain cells. This explainer breaks down the two main types of strokes, their risk factors, and how early detection could change outcomes in the future.

A man survived being struck by lightning seven times

Roy Sullivan worked as a park ranger when he was first struck in April 1942 while fleeing a watchtower during a thunderstorm. Nicknamed the "Spark Ranger," he would be struck six more times while driving, in his garden, working in a guardhouse, sitting in his car, walking, and on a fishing trip.

Between 10 million and 50 million people in the US develop rashes from poison ivy, poison sumac, and poison oak each year.

The deadliest aspect of volcanic eruptions is often not lava, but pyroclastic flows—avalanches of ash, gas, and rock that can move more than half the speed of sound.

The use of fungi to detoxify land and water—a process known as mycoremediation—has been used to clean up natural resources affected by the 2025 California wildfires.

Ebola infects and disables immune cells, triggering a cascade of events that leads to small blood clots throughout the body, weakening blood vessels and interrupting blood flow to key organs.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Astronauts have repaired genetic damage in space using CRISPR—a molecular tool that can make precise changes to DNA and is used in single-celled organisms to attack invasive viruses.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

Shooting stars, or meteors, are fragments of asteroids and comets that burn up as they enter Earth's atmosphere, creating streaks in the sky called meteor showers.

Listen to an in-depth conversation on the links between Parkinson's disease and herbicide exposure and the challenging pace of scientific investigation.

Fear or disgust related to clusters of holes and cracks, called trypophobia, may stem from evolutionary processes to help us avoid pathogens.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Hedge funds, the private investment firms that trade a wide swath of financial assets, make money by imposing steep fees on investors and from the fund's investment performance.