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Dr Usman Javaid
Dr Usman Javaid
Gastroenterologist
Acute & Infectious

Giardiasis — treatment in Lahore

Also known as: Giardia Infection · Beaver Fever

Giardiasis is a common parasitic infection of the small intestine caused by Giardia lamblia. It causes chronic loose stools, bloating, and fatigue — often misdiagnosed as IBS or food intolerance.

Dr Usman Javaid
Medically reviewed
Dr Usman Javaid · MPH, FRSPH (UK)
Last reviewed
Evidence-based

Overview

Giardia is a common parasitic cause of chronic diarrhea, bloating, and weight loss. Treatment is short and effective — but getting the diagnosis right matters.

Signs & symptoms of Giardiasis

If you recognize one or more of these, it may be worth a consultation:

  • Loose, foul-smelling stools
  • Bloating, excessive gas
  • Cramping and discomfort
  • Weight loss
  • Fatigue

Causes & risk factors

Several factors can contribute to Giardiasis. Identifying yours guides the treatment plan.

  • Contaminated water (mountain streams, untreated water)
  • Daycare and institutional outbreaks
  • Person-to-person spread

How Giardiasis is diagnosed

We order tests selectively — only what changes the plan.

  • Stool ova & parasite testing (multiple samples)
  • Stool antigen test
  • Bloodwork for nutritional deficiencies in chronic cases

Treatment options

Treatment for Giardiasis is personalized — the right plan depends on your symptoms, test results, and life situation.

  1. 1 Metronidazole, tinidazole, or nitazoxanide
  2. 2 Lactose-restriction temporarily (post-infectious enzyme deficiency)
  3. 3 Re-test for cure in selected patients

When should you see a doctor about Giardiasis?

Reach out without delay if you notice any of the following.

  • Foul-smelling loose stools for over a week
  • Bloating with weight loss
  • Symptoms after camping or untreated water exposure
Dr Usman Javaid
Author & medical reviewer

Dr Usman Javaid

Gastroenterology & Medicine Diplomat · DIP (Gastro) UK · DIP (Hepatology) UK · DIP (Diabetes) UK · MCPS FM-TC · MPH · FRSPH (UK) · FRCP (Colombo) · Organ Transplant Advisor · CHPE (NUMS) · Preventive Medicine Specialist · Owner of Javaid Poly Clinic.

This page was medically reviewed by Dr Usman Javaid on . Content is updated when new evidence or guidelines emerge.

Medical disclaimer: This page is for educational purposes and does not replace medical consultation. If you have symptoms of Giardiasis or any other condition, please book a consultation. In emergencies, call 1122 or visit your nearest emergency department.

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