Involution of uterus is the process
of transformation of uterus from pregnent to non pregnent state. It
is a physiological process which occur after parturation. Uterus
returns to pre-pregnent size, normal position in pelvic cavity, and
regain its muscular tone.
After delevery of baby uterus
control bleeding by contraction of muscles. The crisscross
arrangement of muscle layer helps to constrict blood vessels during
contraction of muscle causing less blood flow.This is early stage
of involution. Involution occurs by autolysis and phagocytosis.
During involution muscle undergo autolysis to reduce its size. The
involution is completed at around 6 weeks postpartum.