Breastfeeding is the period after delivery when the mother feeds her baby with her own milk, i.e. from the time she starts breastfeeding until she stops, usually from 10 months to 1 year. Breastfeeding is one of the most important periods for women after childbirth and is beneficial to the health of both mother and baby. Breast milk is the safest, most nutritious and natural food for newborns. Breast milk provides the nutrients needed to meet the development of the baby and is rich in antibodies that boost immunity. The close contact between mother and baby during breastfeeding increases the mother-infant feeling and stimulates the development of the baby’s brain and mind. In addition, it can also promote uterine regeneration, delay the return of menstruation and ovulation, promote milk secretion, and reduce the risk of breast and ovarian cancer in mothers. Therefore, it is usually recommended to exclusively breastfeed the baby for 6 months after delivery and up to 1 year old if the situation allows.