Hello, Certain conditions are there and that matters the great as long as the menses is concern, first is irregular menses due to hormone changes, abortion in case of pregnancy, menopausal syndrome all these needs to be ruled out, beside these irregular bleeding could be due to some cervix pathologies like cystic disease, malignancy, it is not advisable to stop the bleeding without knowing the underlying cause, if the underlying cause treated well then bleeding will stop it self, heavy bleeding is medical emergency and it demands the immediate medical attention, spotting could be anything else from the reasons mentioned above. Hope I have answered your query. Let me know if I can assist you further.