Do pinworms cause itch during the day?

Maybe.: Pinworms could cause itching during the day, especially if you are infested with a lot of them. Other causes are possible, like a dermatitis from a soap, detergent or fabric softener, or even cleaning to often. See a doc to see if pinworms are the problem. You can collect the eggs at home See http://www.mayoclinic.org/diseases-conditions/pinworm/basics/tests-diagnosis/con-20027072

Yes: The itch is caused by a skin reaction (dermatitis) to the glue like substance the eggs are deposited in around the anal cleft.It is not in response to the movement of the worm. Such reactions also occur to fecal material, germs,food allergies, soaps, scented toilet tissue, etc.Just because you have anal itch does not mean you have PW and treatment for the wrong assumption is rarely helpful