Necrotising fasciitis is an uncommon and rapidly progressive surgical emergency. A high index of clinical suspicion, prompt administration of broad-spectrum antibiotics and emergency surgery to debride affected tissues are key to improving survival. With our review of three cases, we aim to raise awareness of this condition among gynaecologists, who have limited familiarity with it. Two of our patients presented to emergency with vulval necrotising fasciitis while the third developed it as a complication of postoperative wound infection. All patients underwent extensive surgical debridement and required a multidisciplinary approach from gynaecologists, surgeons, the intensive care team and the tissue viability team.