The 11-year-old boy’s genital organs are the same as when he was a child, which is mainly considered to be related to factors such as developmental delay, hidden penis and small penis. 1. Developmental delay: there are individual differences between different boys, some boys may have developmental delay or underdevelopment, which in turn may result in a short penis as when they were children. 2. Hidden penis: this disease may be related to genetic factors, trauma, obesity and other factors, which will lead to the patient’s penis is short, and looks basically the same as when he was a child. Some patients may also have other symptoms such as urination disorder. 3. Small penis: this disease is related to chromosomal abnormalities, low testosterone levels, testicular trauma and other factors, which can lead to a short penis that does not match the normal age. The appearance of this phenomenon may also be related to other factors. Parents should pay attention to this and seek timely medical examination to diagnose the cause and follow the doctor’s instructions for targeted treatment.