Uterine insufficiency

Incomplete uterine recovery is a more common complication after delivery. Under normal circumstances, due to contraction and contraction of uterine muscle fibers, vascular lumen stenosis or even embolism in the muscular layer reduces the local blood supply significantly, uterine muscle cells undergo autolysis and gradually shrink, and cytoplasm decreases. The uterine volume is reduced, and the placenta peeling surface in the uterine cavity shrinks with the gradual shrinking of the uterus. In addition, the regeneration of the endometrium allows the peeling surface to be repaired. The uterus usually returns to near non-fungus at 5-6 weeks after delivery. During pregnancy, this process is called involution of uterus. When the above-mentioned restoration function is impeded, a subinvolution of uterus occurs.