Colostrum may be the color of colostrum, or it may be the result of poor lifestyle habits or malnutrition. 1. Colostrum: Usually the milk secreted about 1~3 days after delivery is called colostrum, under normal circumstances, the color of colostrum is relatively light, and the texture is thin, which is a physiological phenomenon, colostrum can be gradually transitioned to mature milk. 2. Poor living habits: If breastfeeding women often stay up late, irregular work and rest, or emotional fluctuations, the nerves are in a state of tension for a long time, to a certain extent, will affect the production of milk, so that the texture of breastmilk has become relatively light. 3. Malnutrition: The occurrence of this disease is mainly due to insufficient intake of nutrients or imbalance in the proportion of consumption dysfunction, therefore, for breastfeeding women, it is easy to appear milk light situation. At the same time, symptoms such as weight loss, reduced fat content, mental depression and sluggishness may also occur. It is recommended that women whose breastmilk suddenly becomes bland should go to the hospital for examination to clarify the cause of the problem and follow the doctor’s instructions for treatment.