Puerperal sepsis is a serious infection of the genital tract occurring during childbirth or within 42 days postpartum. It is usually caused by bacteria that normally inhabit the vagina, such as Group A streptococcus or E. coli, entering the bloodstream through wounds or open tissues from labor and delivery. Signs include fever, pain, and abnormal vaginal discharge. Diagnosis involves cultures of vaginal secretions and blood. Treatment consists of antibiotics, with sometimes surgery needed to drain abscesses. Nursing care focuses on isolation, hygiene, monitoring vital signs, and supporting recovery. Proper prenatal care and aseptic techniques during delivery can help prevent this infection.