This systematic review and meta-analysis evaluates the impact of breastfeeding on long-term (breast and ovarian carcinoma, osteoporosis, and type 2 diabetes) and short-term (lactational amenorrhea, postpartum depression, and postpartum weight change) maternal health outcomes. The study found that breastfeeding for more than 12 months was associated with a 26% reduced risk of breast carcinoma and a 37% reduced risk of ovarian carcinoma. Exclusive or predominant breastfeeding was linked to a 32% lower risk of type 2 diabetes. Breastfeeding also increased the duration of lactational amenorrhea. However, there was no conclusive evidence of an association between breastfeeding and bone mineral density, maternal depression, or postpartum weight change. The review supports the hypothesis that breastfeeding has protective effects against certain cancers and type 2 diabetes, but further research is needed to clarify its impact on other maternal health outcomes.This systematic review and meta-analysis evaluates the impact of breastfeeding on long-term (breast and ovarian carcinoma, osteoporosis, and type 2 diabetes) and short-term (lactational amenorrhea, postpartum depression, and postpartum weight change) maternal health outcomes. The study found that breastfeeding for more than 12 months was associated with a 26% reduced risk of breast carcinoma and a 37% reduced risk of ovarian carcinoma. Exclusive or predominant breastfeeding was linked to a 32% lower risk of type 2 diabetes. Breastfeeding also increased the duration of lactational amenorrhea. However, there was no conclusive evidence of an association between breastfeeding and bone mineral density, maternal depression, or postpartum weight change. The review supports the hypothesis that breastfeeding has protective effects against certain cancers and type 2 diabetes, but further research is needed to clarify its impact on other maternal health outcomes.