Generally, you can wear underwear about half a month after breast cancer surgery, but it still needs to be combined with the patient’s wound recovery situation to determine. Surgery is mainly for early and middle stage breast cancer patients, and most of them are traditional invasive surgery, the recovery time of postoperative wounds is different for different patients, and most of the patients need about half a month to one month to recover, that is to say, after half a month, it can be decided whether to wear underwear according to the recovery of wounds. If the speed of recovery is slow, after removing the stitches there is redness and swelling of the wound, you need to wait for a good recovery before you can wear, and you also need to choose a little looser, so as not to cause compression of the breast.