剖宫产
Septic pelvic thrombophlembitis (SPT) occurs most often in bedridden patients after giving birth, or after having undergone a Caesarean section. The main risk factor of developing SPT is postpartum endometritis, which in turn is most commonly caused by a Caesarean section. The blood often pools in the pelvis as this is the lowest part of the patient while laying in a hospital bed. Other risk factors for developing endometritis, and subsequently SPT include: