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Overview
Lactose intolerance is common.
Lactase pills help.
When to get medical care
Call 911Not an emergency.
Get care todayNot usually urgent.
See a doctor soonWeight loss or blood in stool.
Causes
Caused by low lactase.
OwieClear has pages on 1 condition that can cause belly trouble after dairy. Each shows how soon to get care.
Common causes
- Lactose intoleranceOften treated at home
Trouble digesting the sugar in milk.
What you can do at home
- Limit dairy.
- Try lactose-free products.
Medicines
Lactase supplements.
At the doctor
Diagnosed by history.
Questions you may be asked
- Foods
The exam
A physical exam.
Tests
- Breath test
Prevention
Manage diet.
- Lactose-free options
Check your symptoms
Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.
Sources
Last updated 2026-11-13.