Depends what you mean. I can't tell it's there if that's what you mean. It is in the uterus, and there are strings (so it can be removed) that are at the cervix. You can feel these with your fingers if you put your fingers up there. I have heard of someone who's partner could feel the strings during sex, but my ob said it's to do with the length they are cut when fitted - ironically longer is better as they loop, rather than having sharp edges IYKWIM? My partner can't feel them at all.

You should ask your ob to run through the pros and cons for you so you can make sure it is the right thing for you.