The main symptoms of postpartum milk deficiency, i.e., lack of milk, include: little or no milk, thin milk, tiredness, and low food intake. 1. Little or no milk: the patient has no milk or only a small amount of milk. 2. Scarce milk: the patient’s milk is thin. 3. Tiredness (lack of energy) and low appetite: the patient may feel tired easily and have a poor appetite. 4. Lack of color: the patient’s face is pale and lacks luster. 5. Light tongue: the patient’s tongue is lighter in color. Patients who suffer from lack of breast milk due to deficiency of qi and blood after delivery can take breast milk granules, breast milk granules, breast milk tablets, etc. under the guidance of a doctor to benefit qi and nourish blood (to replenish qi and blood in the body), and to promote breast milk production through the collateral channels. However, nausea may occur after taking the lactation granules; those who suffer from diseases that are not suitable for breastfeeding should not take the lactation granules. If any of the above symptoms occurs, patients are advised to go to the hospital actively for consultation, and should not use medicines arbitrarily, or use traditional remedies or local remedies.