Commonly infected parasites in adults mainly include hookworms, roundworms, tapeworms, etc. Symptoms of infection with different worms may be slightly different, such as abdominal pain, indigestion, constipation, diarrhea, drooling, teeth grinding, etc. The main symptoms of parasitic infection include non-specific and specific. If the number of worms is small, the general symptoms and signs are not obvious, and when a certain number of worms is reached, abdominal pain, indigestion, constipation, diarrhea and other symptoms are often shown, which belong to non-specific symptoms. Different intestinal parasites may have different symptoms. Hookworms often feed on blood in the small intestine, which can cause chronic anemia in human beings; roundworms may manifest as abnormal itching near the anus, and may also present with abnormal manifestations such as skin rash, drooling, and grinding of teeth; tapeworms, including the pig tapeworm and the beef tapeworm, have mild symptoms, and the discovery of white banded nodes in the feces is often the only symptom in the first place. If you have symptoms of parasitic infection, you should consult a doctor in time and take treatment under the guidance of the doctor, pay attention to healthy diet, do not eat raw food, pay attention to personal hygiene, and wash your hands frequently.