Childbed fever (puerperal fever) — causes, signs, treatment and history

Causes and risk factors

The condition is typically caused by ascending bacterial infection from the vagina into the uterus. Common predisposing factors include prolonged labour, retained placental fragments, multiple vaginal examinations, instrumental delivery, poor aseptic technique and existing maternal infections. Cesarean delivery increases the chance of infection and is therefore a recognized risk factor. The role of broad preventive measures such as perioperative antibiotics and strict antisepsis is well established.

Signs and diagnosis

Symptoms often begin within days of delivery and commonly include fever, lower abdominal or pelvic pain, uterine tenderness, abnormal or foul‑smelling lochia and general malaise. Diagnosis is primarily clinical, supported by blood tests showing inflammatory markers and, when possible, microbiological cultures of blood or uterine material. Imaging may be used to exclude retained products or detect abscesses.

Treatment and prevention

Treatment centers on prompt empiric broad‑spectrum antimicrobial therapy tailored to likely organisms, later refined by culture results when available. Management also addresses removal of retained tissue, uterine drainage where necessary, and supportive care for sepsis. Preventive strategies include strict hand hygiene, aseptic technique during delivery, routine prophylactic antibiotics for cesarean section, and early recognition and treatment of maternal infections.

Historical perspective

In the 19th century puerperal fever caused high maternal mortality in hospitals. The Hungarian physician Ignaz Semmelweis dramatically reduced rates by advocating handwashing with chlorinated solutions, a discovery initially resisted but later foundational to modern infection control and maternal safety.

Complications and distinctions

Complications can include pelvic abscess, septicaemia, chronic pelvic pain and, rarely, infertility or death. Childbed fever specifically refers to uterine or puerperal infections and should be distinguished from other postpartum conditions such as mastitis or urinary tract infection. Early recognition, hygienic care and appropriate antibiotic therapy have made life‑threatening outcomes far less common in settings with access to modern obstetric care.

Further reading: bacterial causes, postpartum infection overview, miscarriage and infection risks, sepsis in pregnancy, cesarean section risks, antibiotic prophylaxis.