Although myopia surgery can be performed during menstruation, you should try to avoid having myopia surgery during menstruation. In general, most surgeries need to be avoided during the menstrual period, unless it is a life-threatening emergency or the condition progresses and surgery has to be performed. The coagulation function of the body usually decreases during menstruation, which may increase the chance of bleeding. Therefore, it is necessary to avoid surgery during menstruation to reduce the possibility of these adverse reactions. Myopia surgery is mostly performed on the cornea, which does not contain blood vessels and is an ocular surface surgery. If there is a special need, myopia surgery can be done during menstruation after consulting a professional doctor.