Clinical presentation of Ascariasis

Many individuals infected with Ascaris lumbricoides remain generally asymptomatic.

But on the other hand, if the infection is severe, the individual can become symptomatic.
Ascariasis has a multitude of symptoms, which include:

Coughing
dyspnea
substernal pain
conjunctivitis, convulsions
eosinophilia
fever
skin rash
abdominal distension
abdominal pain
colic
nausea
vomiting
anal itching
anorexia
disordered small bowel pattern
malabsorption
enterocolitis
fat malabsorptio
intermittent diarrhoea
jejunal mucosal abnormalities
protein malabsorption
restlessness
vitamin A malabsorption
intestinal obstruction
intussusception
invasion of bile duct (producing cholangitis, obstructive jaundice, gallstones, or liver abscesses)
acute appendicitis
acute pancreatitis
intestinal perforation, peritonitis
upper respiratory tract obstruction
volvulvus 



Most of the symptoms occurred due to the obstruction and migration of the adult worm to elsewhere of the body other than the intestines.  Although these symptoms exist, Ascariasis can often go misdiagnosed as most of the symptoms can also be contributed to other common illnesses.

More than often, the diagnosis of Ascariasis comes about after the excretion of adult Ascaris worms via the anus, mouth, or nose.