O60-O75: Complications of labour and delivery

O72: Postpartum haemorrhage

Postpartum haemorrhage refers to a group of conditions characterised by excessive bleeding after childbirth. This can occur immediately after birth or up to 6 weeks later, with the former being far more common. The principal cause is usually the uterus not contracting strongly enough after the birth, which is referred to as uterine atony. However, it can also be due to tissue from the placenta remaining in the uterus, injuries during childbirth, or blood clotting disorders. Common symptoms include heavy bleeding, a drop in blood pressure, and an increase in heart rate. If left untreated, it could lead to shock and other serious complications. The condition most commonly affects the reproductive system but, in severe cases, can impact the cardiovascular system as well.