What are the risks of taking long-acting contraceptives?

Take long-acting contraceptives, more will cause menstrual disorders, bleeding or amenorrhea phenomenon. Some women will also appear nausea and vomiting, chest swelling, frequent urination, fatigue and other symptoms similar to early pregnancy, these are long-acting contraceptives on the human body harm, generally do not recommend women to take long-term, not recommended to take more than three times a year.