The physiological changes of the uterus in the puerperium are mainly manifested in the contraction of uterine muscle fibers, endometrial regeneration, and uterine vascular changes.
1. Contraction of uterine muscle fibers: with the disintegration and discharge of proteins in the myoplasm and the reduction of cytoplasm, the volume and weight of the uterus gradually return to the pre-pregnancy state as the uterine muscle fibers continue to contract.
2. Endometrial regeneration: the endometrial basal layer gradually regenerates a new functional layer, and the endometrium is slowly repaired. Around the 3rd week after delivery, the surface of the uterine cavity is covered by newborn endometrium except for the placental attachment site, and the placental attachment site is basically repaired after about 6 weeks.
3. Changes in uterine blood vessels: As the uterus recovers, the open uterine spiral arteries and venous sinuses are narrowed by pressure, and finally the bleeding gradually decreases until it stops.
During the puerperium, you need to pay more attention to rest, pay attention to diet and nutrition, and follow the doctor’s instructions for regular post-partum checkups. If you have any discomfort in the lower abdomen or foul-smelling secretions, we recommend that you consult a doctor for further examination, so that the cause can be clarified with the help of the doctor and targeted treatment can be carried out.