Birth control options that is the iud the mirena and the ius what one of them are the best how long do they last what are the side effects and will i gain wieght i have had one of them before but the doctor had put it in wrong an i started bleeding rea

Both : Both the Mirena (levonorgestrel) iud and the ius are the same type of device; a long-acting hormone device placed in the uterus. The effectiveness is for 5 years. Having initial pain and bleeding is normal. The first weeks are painful and the patient usually needs initially a stronger pain medication and then milder medication such as ibuprofen. Irregular bleeding usually occurs for 2-2 months and then the patient usually has little to no bleeding for 5 years. Risks of the device include expulsion (the device coming out, which is rare), or infection. Most women do not have weight gain.