The Portuguese man-of-war may look beautiful with its bright blue and purple colors, but experts warn people to stay far away from it if they spot one on the beach. Although it resembles a jellyfish, this sea creature carries powerful venom that can cause serious pain and dangerous reactions when touched.

Its balloon-like body floats on the surface of the water while long purple tentacles trail underneath. These tentacles contain venom-filled cells designed to sting and defend the creature. Even when a Portuguese man-of-war washes ashore and appears dead, the tentacles can still sting for days afterward.

Health experts say contact with the venom can lead to intense burning pain, red welts, swelling, breathing difficulties, fever, shock, and in rare situations, paralysis or heart-related complications. One influencer even went viral after licking one of these creatures, later suffering serious consequences from the dangerous mistake.

If someone is stung, medical professionals advise avoiding popular myths such as urinating on the area. Instead, the safest response is to rinse carefully with seawater, avoid rubbing the skin, and seek medical attention as quickly as possible, especially if symptoms become severe. Beachgoers are encouraged to admire these unusual creatures from a safe distance rather than risking a painful encounter.