Jellyfish venom can cause varying degrees of damage after stinging the human body. For example, the stings of sea wasp jellyfish can secrete cobra-like venom, which is the most harmful to humans. It can cause death within 5 minutes after the sting. After a man-of-war jellyfish stings a human body, it takes many days for the patient to recover from the pain. Sand jellyfish, which float in the Yellow Sea with cold currents, are common along my country's coast and can secrete peptide poisons. Yellow-spotted jellyfish is mainly distributed along the coasts of Guangdong and Guangxi and is somewhat toxic.

my country’s sea area is vast, and a considerable number of jellyfish sting cases occur from July to September every year. In the past, it was mainly fishermen who caught jellyfish. Recently, there are also patients who have been stung by swimming and playing on the beach. For example, more than 3,400 people have been stung on the Qinhuangdao beachfront in recent years. According to statistics from Beidaihe Haibin Hospital, a tourist resort, in the past five years since 1989, the hospital has treated 3,030 patients with stings, of which 0.3% were caused by fulminant allergic pulmonary edema, and 4 died (all with severe shock). ).