Colla Corii Asini has a fetus-preserving effect, but it may also cause a slippage if used improperly. It can protect the fetus because it has the function of blood tonic, which can promote the growth of hemoglobin and red blood cells, and also has the function of stopping bleeding. In addition, Colla Corii Asini can also regulate menstrual disorders and excessive menstruation, which can improve dysmenorrhea and menstrual disorders in women. If a woman has a serious deficiency of blood and Qi during pregnancy, she can take Colla Corii Asini under the guidance of her doctor to protect the fetus. However, it is important not to take too much of it, as it may activate the blood too much and cause the fetus to slip. In addition, when consuming Colla Corii Asini, it should be taken before meals and the dosage should follow the doctor’s instruction. Do not take gum when you have a cold, do not drink tea at the same time to avoid aggravating the condition, and also prohibit taking the medicine when its properties change. In conclusion, it is very important for women to take medication and diet during pregnancy, and they should pay attention to a healthy and balanced diet on a daily basis. In case of pathological problems, such as signs of miscarriage, it is necessary to go to a regular hospital for treatment in a timely manner and follow medical advice on medication, not to abuse drugs on their own to avoid delaying the condition and aggravating adverse reactions.