A 10-year-old child catching a cold at school is usually associated with low resistance, changes in environmental temperature, and being infected. 1. Low resistance: The immune system of a 10-year-old child is not yet very mature, and if the resistance is also relatively low, it is easy to be affected by various factors, which can cause colds and flu, and may appear as soon as the school has a cold. 2. Changes in environmental temperature: If the parents of a 10-year-old child dress their child in a lot of clothes or if the child is exposed to wind after sweating in the school activities, it may lead to the occurrence of colds in the child. 3. Being infected:In school is a collective life, many children in a classroom together to learn, play, if it is the high season of influenza or there are other children have a cold and so on, 10-year-old children go to school may be infected, and then appear to go to school on the situation of cold. The 10-year-old child went to school with a cold, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.