Short-acting contraceptive pills cause bleeding, mostly due to drug side effects, but does not rule out the possibility of other diseases.
Short-acting contraceptives may indeed cause bleeding, because short-acting contraceptives are a combination of estrogen and progesterone, and in the first two or three cycles of taking the pill, abnormal bleeding may occur due to less adaptation and less stable hormone levels in the body, usually not in large amounts.
However, some women may have vaginal, cervical or endometrial lesions, including inflammation or malignant lesions, which can cause abnormal bleeding during the non-menstrual period, and need to go to the hospital for a clear diagnosis, and then do targeted treatment.
In short, bleeding during taking short-acting contraceptives, if the examination to exclude other diseases, bleeding is not much can generally be observed, physical examination of normal young women can be added to help stop bleeding when necessary, but need to be under the guidance of a doctor; if the bleeding is large or drenching, you need to consult a doctor for assessment, to see if you need to stop the drug or other treatments.