The face of patients with ascariasis may appear pale, facial edema, urticaria, and redness of the eyes. Other symptoms include pulmonary, ocular, gastrointestinal symptoms, and malnutrition. 1. Facial manifestations: In general, patients with Ascariasis have no special facial manifestations. When Ascaris lumbricoides causes severe malnutrition, pallor may appear, and when it causes allergic reaction, facial edema and urticaria may appear. Eye redness in patients with ocular ascaris larvae. 3. Lung symptoms: patients who have accidentally eaten a large number of infected stage roundworm eggs can develop ascaris lumbricoides pneumonitis and asthma, which are manifested as cough, hemoptysis, fever and respiratory difficulties. 4. Eye symptoms: eye roundworm larvae disease can be manifested as eye redness, photophobia, tearing, worm shadow, eye swelling, vision loss, etc.. Loss of vision is severe during the day and can be recovered at night. 5. Gastrointestinal symptoms: Because intestinal roundworms damage the intestinal mucosa, plunder nutrition and toxicity, patients often have symptoms such as lack of appetite, easy to starve, diarrhea, constipation, etc. The site of abdominal pain is often in the epigastric region or umbilical cord, and seldom in the cecum. 6. Malnutrition: Ascaris lumbricoides parasitize the small intestine of human body to absorb nutrients to survive. Ascariasis often causes malnutrition, which is characterized by pallor. Infected children may even suffer from developmental delays and mental decline. 7. Allergic symptoms: Ascaris lumbricoides metabolites, secretions and cuticle shedding are allergens, which can cause hypersensitivity reactions, such as asthma, conjunctivitis, urticaria, facial edema. When the patient has the above symptoms, he should go to the hospital in time, and standardize the treatment under the guidance of the doctor.