Postnatal Depression (PPD) is a type of depression that can occur in new mothers after childbirth. It is characterized by feelings of sadness, anxiety, and exhaustion that can interfere with a mother's ability to care for herself and her baby. PPD can develop within weeks or months after delivery and may affect a mother's emotional and physical well-being. The exact cause of PPD is not fully understood, but it is believed to be linked to hormonal changes, lack of support, and the stress of adjusting to motherhood. Treatment options include therapy, support groups, and medication, which can help mothers manage their symptoms and improve their quality of life.