Most people infected with ascariasis have no signs or symptoms. Moderate to heavy infestations cause various signs or symptoms, depending on which part of your body is affected. In the lungs After you swallow the tiny (microscopic) ascariasis eggs, they hatch in the small intestine and the larvae migrate through the bloodstream or lymphatic system into the lungs. At this stage, you may experience signs and symptoms similar to asthma or pneumonia, including: 
Persistent cough
Shortness of breath
Wheezing
 After spending 10 to 14 days in the lungs, the larvae travel to the throat, where you cough them up and then swallow them. In the intestines The larvae mature into adult worms in the small intestine, and the adult worms typically live in the intestines until they die. In mild or moderate ascariasis, the intestinal infestation can cause: 
Vague abdominal pain
Nausea and vomiting
Diarrhea or bloody stools
 If you have a large number of worms in the intestine, you might have: 
Severe abdominal pain
Fatigue
Vomiting
Weight loss or malnutrition
A worm in your vomit or stool

