If the epiphysis is closed, the epiphyseal shadow will disappear, and a professional radiologist can help determine this. Whether the epiphysis is closed or not is generally used as a condition for height development. Epiphysis mainly exists at the two ends of long bones, that is, the joint area, and there is articular cartilage attached to the surface of the epiphysis, which will form the joint surface, such as the upper and lower parts of the knee joint. Therefore, daily attention should be paid to protecting the long bones and joints of the body and avoiding sports injuries, which can lead to delayed or stopped height development. Appropriate dietary supplementation of calcium and vitamins can promote bone development and height development at the same time. If you want to clarify whether the epiphysis is closed, you still need to go through professional examination means, you can go to the orthopedic department of public hospitals for examination.