Intestinal Worm Infections
Infections with worms such as roundworm, hookworm and threadworm, common in children. They can cause tummy pain and anaemia.
Quick Summary
Often none. Tummy pain, poor appetite, diarrhoea, itching around the anus (threadworm), tiredness and anaemia.
Deworming medicines such as albendazole, and good hygiene.
Poor sanitation, walking barefoot, unwashed hands and eating unwashed vegetables.
Overview
Soil-transmitted worms spread through eggs in contaminated soil and food. India runs National Deworming Day for children.
Hookworm infection can cause iron deficiency anaemia and affect growth and learning.
Symptoms
Tummy pain
And bloating.
Itchy bottom
Especially at night, with threadworm.
Tiredness
From anaemia.
Visible worms
Sometimes in stool.
Causes & Risk Factors
Biological Causes
Swallowing worm eggs from contaminated soil, food or hands, or hookworm larvae entering bare feet.
Key Risk Factors
- Sanitation Open defecation and unsafe water.
- Hygiene Not washing hands.
- Barefoot walking Hookworm entry.
Management & Treatment
01. Deworming
Albendazole as advised.
02. Hygiene
Handwashing, clean nails, safe toilets.
03. Footwear
Wear shoes outdoors.
Frequently Asked Questions
How often should children be dewormed?
Should the family be treated?
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Parasitic Diseases(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Threadworms(opens in a new tab) · NHS
- Soil-transmitted helminth infections(opens in a new tab) · World Health Organization