The height of 11-year-old boys generally ranges from 127-151 cm, but there are regional and individual differences. The height of children is affected by many factors, such as genetic factors, nutritional factors, and environmental factors. Parents are advised to take their children to the pediatric department or child health department for regular physical examinations to monitor growth and development dynamically. If abnormalities in height and weight are found, the specific causes should be clarified in time and the specific treatment methods are as follows: 1. Physiological causes: pay attention to strengthening nutrition, pay attention to balanced diet, carry out some moderate activities, reasonably arrange study and sleep time, avoid chronic diseases as far as possible, and promote healthy development; 2. growth and development to avoid adverse effects.