A little bleeding after taking progesterone capsules is not related to the drug, but to the following factors: First, if progesterone is taken to induce menstruation, this time may be eaten relatively late, the endometrium has already appeared vascular filling, began to shed phenomenon, in the time of eating progesterone will not play a corresponding role, it is recommended that this time immediately stop using progesterone, let the menstruation come. Secondly, if it is used for the treatment of fetus or for the treatment of other diseases, such as the treatment of shortened menstrual cycle caused by progesterone deficiency, the dosage of the drug may not reach the corresponding therapeutic effect, which is why bleeding occurs, it is recommended to use the drug under the guidance of the doctor and increase the dosage of the drug when necessary.