Pregnancy and lactation-associated osteoporosis in a Systemic Lupus Erythematosus patient.

Pregnancy and lactation-associated osteoporosis (PLO) is a rare disease that occurs in late pregnancy or early postpartum and is associated with multiple vertebral fractures. We present a case of a 34-year-old woman with a history of Systemic Lupus Erythematosus and Antiphospholipid Syndrome, who started postpartum back pain. After an ineffective response to analgesic escalation, she performed imaging exams with evidence of multiple dorsal and lumbar vertebral fractures. After an exhaustive etiological study, PLO represented the most likely diagnosis. Early diagnosis, interruption of breastfeeding, and initiation of targeted anti-osteoporotic therapy are essential for symptomatic control, increase the quality of life of these patients, and prevent new fractures in the future.