When brown discharge occurs on the 26th day of transplantation, if it is caused by physiological reasons, it can be temporarily observed; if it is caused by pre-eclampsia and other reasons, it is necessary to follow the doctor’s instructions for medication to preserve the fetus. 1. Physiological reasons: transplantation refers to in vitro fertilization-embryo transfer technology, applicable to tubal infertility, unexplained infertility and other infertility, to be operated by a professional doctor. Some pregnant women may experience a small amount of brown vaginal discharge when the embryo is implanted, without other symptoms, it is a normal physiological phenomenon and does not need to be treated. 2. Pre-eclampsia: there will be vaginal flow of brown discharge, can also be accompanied by pain in the lower abdomen, ultrasound can be clear normal pregnancy, progesterone and blood HCG (human chorionic gonadotropin) levels are low, to comply with the doctor’s instructions to rest, avoid strenuous exercise, and comply with the doctor’s instructions for progesterone and other medications to protect the fetus treatment. When brown discharge occurs on the 26th day of transplantation, you need to go to the hospital to find out the cause and deal with it positively, and you should not use medication on your own to avoid adverse effects.