The Centers for Disease Control and Prevention (CDC) and National Healthcare Safety Network (NHSN) have developed surveillance definitions for health care-associated infection (HCAI) and specific types of infections in health care settings. The diagnosis of endometritis requires that certain criteria be met.


Criteria for endometritis – one or more of the following:

(1) culture from fluid or tissue from endometrium (by biopsy, from surgery, by needle aspirate) is positive for micro-organisms

(2) 2 or more of the following:

(2a) 2 or more of the following

(2a1) fever > 38°C

(2a2) abdominal pain

(2a3) uterine tenderness

(2a4) purulent drainage from the uterus

(2b) no other recognized cause


Another criteria would be evidence of endometritis on histolopathologic examination of biopsy material or fluid from the endometrium.


Endometritis following childbirth is considered health care-associated unless:

(1) the amniotic fluid was infected at the time of admission

(2) the patient was admitted >= 48 hours after rupture of the membranes (ROM)


To read more or access our algorithms and calculators, please log in or register.