Brown discharge after embryo transfer is commonly seen in the following cases: 1. Uterine fluid accumulation. When the embryo is transferred into the endometrium, it causes capillary rupture and bleeding, and the bleeding volume is small, which is collected in the uterine cavity to form uterine cavity effusion and discharged with brown discharge. 2. Pre-eclampsia miscarriage. Insufficient luteal function at the time of embryo transfer can easily lead to pre-eclampsia miscarriage. If progesterone is not replenished in time or progesterone is not replenished enough, it will continue to develop into inevitable miscarriage, and progesterone must be replenished according to medical advice after IVF transfer. 3. Inflammation. Local inflammation of reproductive organs, such as cervicitis, vaginitis, etc., there may be bloody vaginal discharge. Usually pay attention to keep your mood relaxed, eat a light diet, eat more vegetables and fruits, keep your bowels open, pay attention to rest, and go to the hospital for regular review.