The following symptoms and complaints may indicate giardiasis:
- Diarrhea (diarrhea) – often foamy and watery.
- Malabsorption
- Weight loss
- Anorexia (loss of appetite)
- Vomiting
- Steatorrhea (fatty stools)
- Meteorism (bloated abdomen)
- Hyperperistalsis – increased movements of the intestine.
Often the infection is asymptomatic, ie without symptoms. In children, the elderly and immunocompromised individuals, severe courses may occur.
