Conditions A-Z

Giardiasis

From Wikidata and MedlinePlus; a guide, not a diagnosis.

Usual symptoms

  • Headaches
  • Irritability
  • Diarrhoea (loose or watery stools)
  • Vomiting
  • A lot of wind (gas)
  • Sleep problems
  • Stomach or belly pain
  • Nausea (feeling sick)
  • Loss of appetite
  • Feeling weak all over
  • Bloating
  • Tiredness that rest does not fix

Having some of these does not mean you have this condition: many conditions share the same symptoms.

Who to see

  • A doctor for the stomach and bowels
  • A clinic for infections

Related health checks

Digestion and bowel check · Fever check · Protection check: tests and vaccines

Read more

  • Giardia Infections MedlinePlus
    Giardiasis is an illness caused by a parasite called Giardia intestinalis. It lives in soil, food, and water. It may also be on surfaces that have been contaminated with waste. You can become infected if you swallow the parasite. You can a…

Search MedlinePlus for “Giardiasis” · Symptom guide · Health checks

Symptoms, specialties, risk factors and codes from Wikidata (CC0 public domain); reading from MedlinePlus, U.S. National Library of Medicine. A guide, not a diagnosis: please see a health worker.