Eggs can pass to other people when they touch these surfaces and then touch their mouth. They take around 2 weeks to hatch.
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.
How long do you have worms before you see them?
Sometimes pinworms can be seen around your anus or on your underwear or bed sheets about 2 to 3 hours after you've gone to bed. Most of the time, pinworms don't cause major problems. But in rare cases, they can cause infections of the vagina and uterus. If you have a tapeworm infection, you may not have any symptoms.
How do you know if you've got threadworms?
The common symptoms include: You can spot worms in your poo (faeces) or near to the back passage (anus). Severe itching around the anus. Waking up during the night as a result of the itching.
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