Men can wear women's clothes after breast augmentation. Under normal circumstances, a man's breast augmentation is to change sex, that is, to become a woman. In this case, men wearing underwear with C cups after breast augmentation can better shape women's curves and meet their own aesthetic needs.

However, please note that this involves personal preferences and physical freedom, and everyone's situation is different. In addition, breast augmentation surgery is a complex medical technology, which requires comprehensive evaluation and precise operation. Therefore, if you have any questions or need more information, you'd better consult a professional doctor or medical institution.