Diaphragm: Fast Facts
Reviewed By:
Joanne Poje Tomasulo, M.D., ACOG
- A diaphragm is a rubber cup made of latex or silicone.
- It is a temporary method of contraception that must remain in
place for six hours after intercourse to prevent pregnancy.
- A diaphragm is placed over the cervix, or the opening of the
uterus that separates the vagina from the uterine cavity.
- It is used to stop sperm from entering the uterus and fallopian
tube, where it would normally travel to fertilize your egg.
- The device should always be used in combination with a
spermicide cream or gel.
- When placed in the diaphragm and along its rim, spermicide
destroys any sperm that may manage to swim around the rim of the
diaphragm.
- A diaphragm does not protect against sexually transmitted
diseases. To prevent STDs, the device should be used with a
condom.
- A diaphragm is available only by prescription.
- You can be fitted for a diaphragm in your doctor's
office.
- The fit of the diaphragm should be checked every year because
changes in the size or shape of the vagina or position of the
uterus may cause the diaphragm to fit incorrectly.
- A diaphragm that is larger or smaller than needed may lead to
numerous complications, including leakage and pain.
- Your vagina gets longer during arousal. Because of this, a
diaphragm that is too small may slip off your cervix during
intercourse.
- A diaphragm can be inserted up to six hours before sex.
- Some women may use a plastic tool known as an introducer to
insert the diaphragm.
- You can have intercourse several times while wearing a
diaphragm. However, additional spermicide should be applied each
time.
- After intercourse, the diaphragm must remain in place for at
least six hours to prevent pregnancy.
- It must be removed within 24 hours in order to prevent
complications, including urinary tract infections and toxic shock
syndrome.
- The Food and Drug Administration estimates that approximately
17 percent of women who rely on the diaphragm for contraception
have an accidental pregnancy each year.
- To avoid unplanned pregnancy, you must wear the device every
time you have intercourse, use spermicide and ensure the device is
positioned correctly over the cervix.
- The easiest type of diaphragm to insert, the arcing spring rim
diaphragm is very sturdy and has a firm ring.
- Made of latex, a coil spring rim diaphragm features firm spring
strength and a soft flexible rim that does not form an arc when
folded.
- A flat spring rim diaphragm is similar to the coil spring rim
diaphragm, but offers a thinner, more delicate rim.
- Made of silicone, a wide-seal rim diaphragm is a good option
for women who are sensitive or allergic to latex.
- Although most women who use a diaphragm have no complications,
possible risks include an allergic reaction and irritation from
spermicide.
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