After a few weeks, the female pinworms move to the end of the large intestine, and they come out of the body at night to lay their eggs around the anus (where poop comes out). The amount of time that passes from when someone swallows the eggs until the worms lay new eggs is about 1 to 2 months.
How long can you have threadworms without knowing?
According to one consultant physician, threadworm infestation is as common in children as head lice and affects most families at some time. Threadworms usually produce no symptoms except an itchy bottom. In fact, people may harbour them for years without realising it.
Can you have worms for years without knowing?
Some people may have intestinal worms for years without experiencing any symptoms.
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