What is ascariasis? It is one of the biggest parasitic nematodes in human body. It is also the most common intestinal parasitic disease in children. Infectious ascaris eggs are transmitted by mouth through contaminated hands, food or raw water. Ascaris eggs are swallowed by children, most of them are killed by gastric acid in the stomach, and a few of them hatch into larvae in the small intestine, and then enter the liver, right heart, lung, respiratory tract and throat through the blood vessels and lymphatic vessels in the small intestine in turn. Swallow it again and go back to the small intestine. Symptoms of ascariasis vary in severity. One is urticaria, facial edema, itchy nose and throat when larvae swim in the body; When the larva passes through the lungs, it will make the patient cough, asthma, fever and so on. The other is that when adults are in the intestines, patients will have symptoms such as anorexia, hunger, diarrhea, constipation and abdominal pain. Abdominal pain is mainly around the navel or upper abdomen, and it is irregular. Ascaris lumbricoides living in the intestine for a long time will cause malnutrition, anemia, stunting, mental anxiety, restless sleep, grinding teeth and so on. The other is to cause complications. Ascaris can drill into bile duct, cecum, or block the intestine, which will cause severe pain.

How to prevent and control ascariasis We should pay attention to children's food hygiene and personal hygiene, such as washing hands before and after meals and not eating cold and unclean food. In areas where ascariasis is prevalent, children should be deworming once every six months to avoid complications. There are many kinds of anthelmintics on the market, such as Quyuling and Jiepijing. Taking the above drugs may cause side effects such as nausea and vomiting, but they are short-lived. You can give your child some sugar water or rice porridge.