Bleeding one month after hysterectomy may be due to menstruation after partial hysterectomy, or due to poor healing of the stump or granulation of the stump. 1. Menstruation: hysterectomy is divided into total hysterectomy and subtotal hysterectomy, if it is subtotal hysterectomy, a small portion of endometrium and cervical canal will be left behind, if the patient’s ovarian function is normal, the endometrium will be shed periodically under the effect of estrogen and progesterone, however, the amount of bleeding will be much less compared with the previous menstruation. 2. Poor healing of the stump or granulation of the stump: the stump needs to be sutured after hysterectomy and it takes a period of time to repair. If the stump heals poorly or granulation grows after hysterectomy and sports or heavy physical labor is performed at this time, it will lead to a small amount of bleeding. If you have bleeding one month after hysterectomy, you should go to the hospital for a detailed examination and treatment for the cause. After hysterectomy, you should take more rest, strengthen nutrition, promote wound healing, and avoid doing heavy physical labor or having sex.