After taking progesterone and stopping the medication for 10 days, there is still no menstruation, it may be due to the following reasons: 1, because the dose of progesterone taken is relatively small, and the time taken is short, so it did not lead to the thickening of the uterine lining during the period of the medication, and after stopping the medication, there will not be retreating bleeding, it is recommended that according to the results of the examination and then decide whether it is necessary to take progesterone to promote menstruation. 2, because of the pregnancy, and after the pregnancy after the progesterone is eaten, the same as playing a role in restoring the fetus. It’s not a good idea to take progesterone to induce menstruation, because it’s the same as having a tranquilizing effect on the fetus, and you won’t have menstruation. 3. It is recommended to do further examination to understand the causes of this situation, and then do the appropriate treatment.