26 days after delivery, the color of bad dew suddenly turned red, if transient, generally not a big problem, if persistent, and the amount of increase, is not normal, may be due to maternal intrauterine infection, uterine cavity residue, poor healing of the incision, and so on. 1. Intrauterine infection: If the mother has an intrauterine infection, the local mucous membrane is weak, the uterine contraction force is weakened, bleeding is easy to occur, thus the color of the 26 days of bad dew suddenly turned light red, often accompanied by abdominal pain and other symptoms. 2. Uterine residue: If there is placental residue or chorionic villus residue in the uterine cavity, it will also affect the uterine regeneration, secondary endometrial inflammation, causing bleeding. 3. Poor incision healing: if the mother is a cesarean section, there are poor intraoperative hemostasis, easy to form a local hematoma or local infected tissue necrosis, resulting in poor healing of the incision, resulting in 26 days of the color of the discharge suddenly turned light red. If the above symptoms occur, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and symptomatic treatment.