If a woman’s milk supply decreases after postpartum lactation, it may be due to insufficient nutritional intake, inaccessible mammary ducts, and low prolactin secretion in the body, which need to be analyzed specifically. 1. Insufficient nutritional intake: If a woman’s nutritional intake is insufficient when she is breastfeeding, then there is a lack of raw materials for the production of milk, resulting in too little milk. 2. Incomplete milk ducts: If a woman has a condition such as mastitis, the milk ducts may be blocked. After breastfeeding, this pathology is still not removed, resulting in the amount of milk becoming even less. 3. Prolactin secretion in the body is too low: if a woman has too little prolactin secretion, it may cause too little milk secretion, and even through localized lactation treatment, the hormone situation cannot be improved, making the amount of milk become even less. Women who experience too little milk production during breastfeeding need to allow the child to suckle the nipple adequately to promote the production of the hormone. If this symptom persists and does not go away, prompt medical treatment is recommended.