Plastic surgery costs vary from person to person. The size of male genitalia is related to heredity, sex hormones, early embryonic development and acquired development of penis. Simply put, it is basically directly related to personal heredity and system. Generally, as long as it doesn't affect sexual life and fertility, you don't have to care too much. Of course, if there are congenital developmental defects. For example, problems such as concealed penis and stunted growth are suggested to be solved through targeted medical treatment. It is suggested to choose a regular hospital for diagnosis and treatment and take medicine according to the doctor's advice so as not to delay the illness.
If you still don't understand, please keep asking questions. I wish you good health!