Authorities and marine experts have once again urged beachgoers to exercise caution after the seasonal return of blue bottles along Karachi’s coastline during the monsoon season.
According to marine experts, blue bottles typically appear on Karachi’s beaches in June and July when changing winds and sea currents wash them ashore. Although they closely resemble jellyfish, blue bottles are a different type of marine organism, scientifically known as the Portuguese man o’ war, and are capable of delivering extremely painful stings.
Their tentacles can cause intense burning, swelling, redness, and severe pain upon contact with the skin. In some cases, victims may also experience allergic reactions that require immediate medical attention.
The warning follows a video shared on social media by a Karachi resident, who said several people, including members of his family, were stung while swimming at the beach. The incident has renewed concerns over public safety as large numbers of visitors head to the city’s beaches during the rainy season.
Marine experts have advised citizens to carefully inspect the shoreline before entering the water, avoid touching any unfamiliar sea creatures—even if they appear washed up or dead—and keep children under close supervision.
Health experts recommend rinsing the affected area with seawater rather than fresh water if stung, carefully removing any remaining tentacles, and seeking medical assistance immediately if severe pain, breathing difficulties, or allergic symptoms develop.