Dribbling of menstruation belongs to the category of Chinese medicine, which is “disintegration and leakage” (excessive menstruation or more than a few drops). Colla Corii Asini has the function of tonifying blood and nourishing yin, moistening dryness and stopping bleeding, and can be taken for menstrual bleeding caused by blood deficiency. However, it is important to note that the effect of a single Chinese medicine is weak, and it can be used together with other medicines under the guidance of Chinese medicine practitioners in order to achieve the best therapeutic effect. Colla Corii Asini has the effect of stopping bleeding and is useful in treating many types of bleeding. It is effective in treating menstrual bleeding caused by blood deficiency, blood leakage, blood in stool, blood in urine, hemoptysis, vomiting blood and so on. Colla Corii Asini can also replenish blood and nourish yin, treating dizziness, palpitations (rapid heartbeat, often accompanied by panic), fatigue, paleness and palpitations caused by deficiency of heart and liver yin. Colla Corii Asini can also moisturize dryness, which is useful for heartburn, insomnia, cough with little phlegm, etc., which occurs after yin deficiency. Be cautious of taking Colla Corii Asini if you have a weak spleen and stomach, or if you have internal obstruction of phlegm and dampness (phlegm and dampness obstructing the organs and meridians in the body), the adverse effects and contraindications are not exact. Taking Colla Corii Asini requires the guidance and assistance of a doctor.