How is a woman fitted for a diaphragm?
A pelvic examination by either a physician or a skilled health care provider is required for fitting diaphragms. Fitting rings are produced by diaphragm manufacturers in various sizes and with different rim types. Sizes range from 50 to 105 mm. They are most commonly available in flat spring or coil spring rim types. Diaphragms between 60 -85 mm in diameter will provide the correct fit for most women. Initially the fitting ring size is estimated by clinical assessment of the vaginal length. Smaller or larger sizes are then inserted until the correct fit is achieved. It is important that each individual is fitted with the type of rim that she will ultimately use as the rim type can affect fit and ease of insertion. It should fit snugly into the upper half of the vagina, immediately behind the pubic bone, making contact with the lateral walls of the vagina and the posterior fornix. The anterior rim (behind the pubic bone) should not cause significant pressure and yet should not allow eas
