I would avoid my husband just so that I would not have to wrestle with the darn things. Insertion is difficult for some women. Ultimate fit and comfort may require multiple trips to the doctor. Weight gain and loss, pregnancy, miscarriage and surgery all require a refitting. Even when the fit is perfect, the diaphragm can be knocked out of place by certain sexual positions and techniques.
Some users experience an increase in bladder infections.
The Bottom Line Diaphragms are only available through a doctor's prescription. According to Dr. Dantoni, If you've had a Pap smear and cervical exam within the last year, you're ready for a fitting. This is accomplished by testing out model diaphragms. The largest model that fits completely and comfortably over the cervix works best and will be the prescribed size. For first time users, I usually have them return within the first month to follow up, make sure they are using it correctly and see if they have any questions.