Can the iud make u gain weight?

IUD and bleeding: The IUD works by making the uterine lining thin. It may make your cycles irregular. However, it doesn't cause any changes in your hormone levels so it shouldn't cause weight gain. if you are comfortable using the IUD as a birth control method, i would monitor the weight gain and how much you are eating and see your doctor if it continues to be abnormal.

No: The IUD, whether it's hormonal or copper, is one of the safest and most effective methods of birth control that you can use. It's long-lasting, reversible, and b/c it's made to work inside the uterus, it doesn't cause systemic side effects, like weight gain.