Pinworms are an intestinal infestation caused by very small parasitic worms. This is a common human infestation, especially in school-age children, and not considered caused by a hygiene problem. Pinworms don't cause any harm, just itching, and can be easily treated with medication.
Prevention for the transmission of pinworms or their eggs is through careful hand washing, especially after outdoor play and toileting, and prior to eating.
Please contact the health office if your child has been diagnosed with pinworms.
For more information on pinworms, check out the following web site from KidsHealth.