If you have had a cesarean section for 42 days and the uterus is still bruised on examination, you can take broad-spectrum antibiotics, uterine contractions, and herbal preparations to promote blood flow. Serious cases need surgical treatment. 1. Antibiotic drugs: If there is stasis in the uterus after delivery, broad-spectrum antibiotics should be given to prevent uterine infections, such as ceftriaxone sodium, cefixime and other cephalosporin antibacterial drugs. 2. Uterine contraction agent: it can induce uterine contraction, reduce continued bleeding, and promote the discharge of stagnant blood, such as hysteronin. If the amount of blood in the uterus is relatively large, or even persistent bleeding, and the effect is not satisfactory after oral medication, it is necessary to do the purging surgery in time. 3. Chinese medicinal preparations: more motherwort granules, new biochemical granules, etc., to promote the uterus to activate blood circulation and remove blood stasis. If there is stasis in the uterus after cesarean delivery, try to go to the hospital in time and let the doctor guide the treatment.