Condition
Giardiasis in Children
Clear diagnosis and effective treatment for giardia and parasitic GI infections, with fast symptom relief and prevention of recurrence.
Giardiasis is one of the most common intestinal parasitic infections in children, caused by the microscopic parasite Giardia lamblia. It spreads through contaminated water, food, or contact with infected individuals, and it can cause significant discomfort, malabsorption, and weight loss if left untreated.
At PediGut Health, Dr. Mendez provides thorough stool testing, targeted anti-parasitic therapy, and family education to eliminate the infection, restore normal digestion, and prevent reinfection. With our concierge model, we have the time to investigate exposure sources and guide your family through every step of recovery.
Signs and symptoms
- Watery, foul-smelling diarrhea that may be greasy or float
- Bloating and excessive gas
- Stomach cramps and abdominal pain
- Nausea and occasional vomiting
- Poor appetite and weight loss
- Fatigue and irritability
- Symptoms lasting more than one week
- Recent exposure to untreated water, daycare, or travel
How we treat it
- Detailed history to identify exposure sources such as travel, swimming, or daycare outbreaks.
- Stool antigen testing or ova and parasite exam to confirm giardia or other parasitic infection.
- Targeted anti-parasitic medication prescribed with precise dosing and clear instructions.
- Hydration monitoring and guidance, especially for children with significant diarrhea.
- Family education on hand hygiene, water safety, and prevention of household spread.
- Follow-up testing if needed to confirm clearance and prevent persistent infection.
When to call a pediatric GI
- Diarrhea lasting more than 5-7 days, especially with foul-smelling or greasy stools.
- Recent travel, camping, or swimming in lakes or untreated water sources.
- Signs of dehydration such as decreased urination, dry mouth, or lethargy.
- Daycare or school outbreak with multiple children affected.
- Unexplained weight loss or failure to thrive alongside chronic diarrhea.
- Recurring GI symptoms despite prior treatment or negative basic stool tests.
Frequently asked
How is giardiasis diagnosed in children?
Diagnosis is confirmed with stool testing, usually a stool antigen test for giardia or microscopic examination for ova and parasites. In some cases, multiple stool samples are needed to catch the parasite.
Is giardiasis dangerous for children?
Most cases are uncomfortable but not life-threatening. However, prolonged infection can cause malabsorption, weight loss, and dehydration. Children with weakened immune systems may have more persistent infections.
How long does treatment take?
Most children respond to a 5-7 day course of anti-parasitic medication. Symptoms often improve within a few days, though the gut may take 1-2 weeks to fully normalize.
Can giardiasis come back after treatment?
Reinfection is possible, especially in daycare settings or with continued exposure to contaminated water. We provide detailed prevention guidance and recommend retesting if symptoms recur.
Should the whole family be tested?
Household members with symptoms may also need testing. Asymptomatic carriers can spread giardia, so we assess each situation individually and provide clear guidance.
Ready to talk it through?
Concierge access means we have the time to listen, evaluate carefully, and stay with your family through every step.