3/16/2024 0 Comments Pin worms in poop picturesHookworms are about 1 cm long, round and curved. Pinworm infection usually affects young children who get infected by getting eggs on their hands (either directly from an infected person or indirectly through contaminated objects) and then putting their hands in their mouths. If the patient does not wash hands thoroughly before preparing food, ingestion of the contaminated food by other persons could result in infection. The patient's fingers may be contaminated during scratching. The female pinworm migrate to the anus at night to lay eggs. They inhabit the human large intestine and rectum. Pinworms (also called threadworms) are small (about 1 cm in length) and whitish in colour, which resemble short pieces of thread. Hands when contaminated with soil can also be the transmission media. Parasitic infections are acquired through ingestion of food contaminated with their eggs. If the infected person defecates outside toileting facilities or the faeces is used as fertiliser, the eggs can be deposited in the soil. The larvae and adult worms live in the human small intestine and their eggs are passed out with stool. They have pointed ends and are light brown or pink in colour. Roundworms ( Ascaris species) are round and long, and the length can reach 20 cm. Common ones include roundworms, pinworms, hookworms, tapeworms and liver flukes (usually Clonorchis sinensis in Hong Kong and neighboring areas). There are many intestinal parasites affecting humans. Causative agents and mode of transmission
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