If a patient is taking short-acting contraceptive pills for the treatment of disease and still has no bleeding after 10 days of stopping the pills, most of the changes in the condition caused by hormonal secretion in the body after taking the pills. This is due to the fact that each patient has a different constitution and the sensitivity to the drug is not exactly the same, and some patients may have this clinical manifestation, which is a normal phenomenon of taking the drug and can be treated without treatment. Most patients will have normal menstrual flow after 2-3 courses of medication. Patients are advised to keep a good attitude, not to worry too much, to continue the use of drugs, and to go to the hospital when necessary.