How can children self-test for pinworms?

Generally, methods for children to self-assess whether they have roundworms include observing changes in appetite and eating habits, checking for abdominal pain, examining the face and skin, observing sleep patterns, and inspecting stool and excretions. Detailed analysis is as follows:

1. Observing appetite and dietary changes: If a child's appetite suddenly changes—for instance, alternating between increased appetite with no weight gain and loss of appetite—it may indicate that roundworms are affecting the normal digestive and absorptive functions of the intestine. Roundworm infection also may cause picky eating or pica (cravings for non-food substances such as dirt or paper).

2. Checking for abdominal pain: When children frequently complain of abdominal pain, especially around the navel area, with irregular timing and episodes that resolve spontaneously, it may be caused by roundworms moving or irritating the intestinal wall.

3. Examining the face and skin: Check whether the child has white patches on the face, typically round or oval in shape, commonly referred to as "worm spots." However, this symptom is not specific to roundworm infection and should be evaluated together with other symptoms. Recurrent荨麻疹 (urticaria) could also be a sign of roundworm infection.

4. Observing sleep patterns: If a child experiences restless sleep, wakes easily during the night, grinds teeth, or drools excessively, it may be related to nervous system stimulation caused by roundworm activity at night.

5. Examining stool and excretions: Check whether roundworms or roundworm eggs are present in the child's stool. Sometimes worms can be visibly identified. Also observe whether worms are present around the anus or in vomit; this is a relatively effective way to directly determine whether a child is infected with roundworms.

If necessary, it is recommended to seek timely medical attention for further examinations such as stool smear tests, blood tests, or X-rays, followed by appropriate treatment. As part of daily hygiene, children should be encouraged to wash their hands with soap and running water before meals and after using the toilet, which is a simple and effective way to prevent the spread of roundworm infections.