The experience of IUD replacement can vary from person to person. Some people have described the insertion as feeling like a bad period cramp for about 12 hours, while others have reported it being painful during insertion with no pain in the hours after. Removal is often described as a pressure pinch but generally painless afterwards. However, some individuals have reported severe discomfort and even pain. It's recommended to ask your doctor for painkillers before having your IUD removed or inserted.