The lecture by Dr. K. Sowmya Reddy discusses maternal injuries following childbirth, focusing on various types of lacerations and tears, their causes, prevention, and treatment methods. Key topics include management of complete perineal tears, vaginal and cervical lacerations, uterine rupture, and pelvic hematoma, outlining specific surgical techniques and postoperative care. Emphasis is placed on the importance of institutional delivery and vigilant monitoring of high-risk pregnancies to prevent complications.