Why do soldiers check the following?

When soldiers check the genitals, on the one hand, they check whether the genitals are healthy, whether there are diseases, injuries and their sequelae; On the other hand, it is necessary to check whether there are malformations, organ hypoplasia, phimosis, etc. We all know that the foreskin is too long, which is easy to hide evil people and shelter evil people. Sometimes the environment of soldiers is very bad. If the foreskin is too long, it can be opened for cleaning. If it is phimosis, it may be infected and inflamed, and it may be injured in wartime. Therefore, it is better to choose soldiers who are in good health when choosing soldiers.