Medical Experts Warn Against Urinating on Jellyfish Stings

Medical experts warn that urinating on a jellyfish sting is a myth that can worsen injuries and increase the risk of infection.

This guidance is critical for beachgoers during the summer season, as common misconceptions about first aid can lead to secondary complications or prolonged pain. Using incorrect treatments may aggravate the skin and introduce harmful bacteria to an open wound.

Dr. Vincent Valinducq, a physician, said that people should not urinate on a jellyfish sting because they risk superinfection. Specialists have identified the practice as a reflex that is useless and potentially aggravating to the burn. The belief that urine helps neutralize the sting is a widespread myth that contradicts medical evidence.

Urine can introduce bacteria into the site of the sting, which increases the likelihood of infection. Furthermore, the chemical composition of urine may increase the pain associated with the sting rather than soothing it. Experts said that this outdated practice does nothing to effectively neutralize the nematocysts — the stinging cells of the jellyfish.

Instead of using urine, medical professionals recommend proven first-aid measures. These include using vinegar, hot water, or sand to neutralize the stinging cells more effectively. These methods focus on removing the venomous cells without introducing external contaminants to the skin.

Julien Ménielle, an expert featured by Franceinfo, said these correct procedures ensure public safety on French beaches. The emphasis remains on avoiding home remedies that lack scientific backing, as these can complicate the healing process and lead to more severe medical issues.