Sub involution is incomplete return of the uterus to its pre pregnant size and shape. With subinvolution, at a 4 or 6 week post portal risk, the uterus is still enlarged and soft and the woman still has a lochia discharge. Sub involution may result from.
· A small retained placental fragment
· A mild endometritis or
· An accompanying problem such as a myoma that is interfering with complete contraction.
· Oral administration of methyl ergotamin 0.2mg Q 10 hours to improve uterine time and complete involution.
· An oral antibiotic if the uterus is tender on palpation
N.B. Be certain that women know at discharge from a health care facility the normal process of involution and lochial discharge.