That's not necessarily true. Physical examination is a necessary part. Some schools require a physical examination when applying for the exam, some schools require a physical examination when freshmen report for duty, and some require a physical examination when they re-examine. If you are in the first case, it can be said that publishing the admission results is equivalent to passing the physical examination. If you have a disease that the school thinks is "not suitable" for postgraduate study, then even if you are found by the school after the start of school, the school has reason not to admit you.