Ascariasis is harmful to the human body, including affecting growth and development, leading to malnutrition, causing epigastric pain and so on. 1. Impact on growth and development: Ascariasis can not be effectively treated in time will affect the intellectual development of the human body, resulting in inattention, memory loss and so on. Serious cases will also appear anemia, slow growth and development. 2. Malnutrition: Ascaris lumbricoides parasitized in the human body may cause malnutrition, and in severe cases, it may lead to yellowish skin, lack of appetite and so on. 3. Epigastric pain: Ascariasis can lead to epigastric pain, and in serious cases, it can also cause gastrointestinal disorders, leading to diarrhea, abdominal distension and other symptoms. Ascariasis should be timely to the hospital, under the guidance of professional doctors for treatment, daily attention should be paid to dietary hygiene, avoid eating unclean food.