Gynaecology & Obstetrics All of the following are risk factors for postoperative infection after hysterectomy except : A Urinary catheterization > 7 days B Use of blood transfusion C Surgery for malignancy D Age > 50 years 💡 Explanation All of the following are risk factors for postoperative infection after hysterectomy except : ✓ Correct Answer: B. Use of blood transfusion