What is a major disadvantage of IUD?

Possible Drawbacks of IUDs

Copper-releasing IUDs are known to potentially cause discomfort, including cramps, as well as prolonged and heavier menstrual cycles, along with occasional spotting between periods. On the other hand, progestin-releasing IUDs may result in irregular bleeding and spotting for the initial few months after insertion. Additionally, there is a heightened risk of ectopic pregnancy associated with IUD use. However, it's worth noting that women utilizing IUDs typically face a very low chance of becoming pregnant.