Brits heading to the coast this summer are being urged to stay vigilant after sightings of the highly dangerous Portuguese Man O' War jellyfish across UK beaches. Marine experts have issued warnings as these creatures deliver excruciatingly painful stings that can lead to serious medical complications.
What Makes the Portuguese Man O' War So Dangerous?
Often mistaken for a jellyfish, the Portuguese Man O' War is actually a siphonophore—a colony of organisms working together. Its long, trailing tentacles can extend up to 30 metres and deliver venomous stings capable of causing:
- Intense, burning pain
- Severe skin welts and rashes
- Difficulty breathing
- Heart complications in rare cases
Where Have They Been Spotted?
Reports indicate these venomous creatures have washed up on beaches across Cornwall, Devon, and other southern coastal areas. Warmer ocean currents may be bringing them closer to UK shores than usual.
What to Do If Stung
Marine biologists recommend:
- Rinse the affected area with seawater (NOT fresh water)
- Carefully remove any tentacle fragments with tweezers
- Soak in hot water (45°C) for at least 20 minutes
- Seek immediate medical attention if symptoms worsen
Experts warn against rubbing the wound or using vinegar, as these can worsen the envenomation.
Are Beaches Being Closed?
While no widespread closures have been announced, local authorities are posting warning signs at affected beaches. Lifeguards are being trained to identify and handle Portuguese Man O' War encounters.
Beachgoers are advised to remain cautious, especially when swimming or walking along shorelines where these creatures might wash up.
