Do not use PARAGARD if you have a pelvic infection, get infections easily or have certain cancers. Less than 1% of users get a serious infection called pelvic inflammatory disease. If you have persistent pelvic or stomach pain, or if PARAGARD comes out, tell your healthcare provider. If it comes out, use back-up birth control. Occasionally, PARAGARD may attach to or in rare cases may go through the uterine wall and may also cause other problems. In some cases, surgical removal may be necessary.