All of the following are risk factors for postoperative infection after hysterectomy except:

Older women will have poor tolerance of surgery and also more susceptibility to infections due to reduce post menopausal immunity. Malignancies are characteristically making a woman more prone to infections because of the cachexia and immuno-suppresion with malignancies Catherization may introduce infection in the bladder and should be done only when necessary with proper aseptic technique. Prolonged catheterisation increases risk of catheter associated UTI.