Alarm over poisonous fish hidden in sand 'shocks' Spain

Authorities in several coastal areas of Spain have issued warnings to holidaymakers due to an increase in bites from the weever fish, a small marine species that hides in the sand and is difficult to spot.
According to experts, the fish is not aggressive towards humans, but the danger lies in its camouflage. It stays submerged in shallow sand, leaving only small parts of its body exposed, including its poisonous spines. This causes many vacationers to step on it without realizing it.
A sting from this fish causes immediate and very severe pain, while the most common symptoms include: swelling and redness in the area of the wound;
bruising; dizziness as well as nausea or vomiting. In rare cases, serious allergic reactions can also occur.
Health authorities recommend that in case of a bite: immerse the affected area in warm water (45–50°C) for 60–90 minutes, seek medical attention if the pain is severe or symptoms persist, and avoid putting pressure on the wound. Experts advise the use of protective beach shoes, especially in areas with shallow sand, as the most effective way to avoid contact with the fish. Authorities emphasize that, although the cases are not new, the increase in the number of vacationers during the summer also increases the risk of incidents on the beaches.
⚠️ Mucho ojo en las playas de Huelva! Advierten de la presencia del pez araña en la orilla. Se esconde bajo la arena y su picadura con espinas venenosas causa un dolor extremo.
????@[1118889957980361]
???? https://t.co/J1mAsUVGA3 pic.twitter.com/lKETtka4jS— huelva24 (@huelva24) June 2, 2026
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