Therefore, it is no problem to apply for a health certificate during menstruation, and you can have a normal physical examination. However, if routine urine examination is involved, it can't be carried out during menstruation, because red blood cells are easily mixed in urine, which will affect the urine test results. You can wait until the menstruation is completely clean before doing routine urine examination.
In addition, to get a health certificate, you need to go to the hospital on an empty stomach. Two days before the examination, avoid drinking alcohol and meat food to prevent the liver function results from being affected.