Diaphragm

What is a diaphragm?

A diaphragm is a shallow, dome-shaped rubber disk with a flexible rim that fits within the vagina and covers the cervix so sperm cannot reach the uterus.

How is it used?

• The diaphragm must be covered with spermicide and placed within the vagina to cover the cervix.


• The diaphragm acts by blocking the cervix and preventing the sperm from entering the uterus. The spermicide acts by immobilizing and killing the sperm, making it unable to fertilize an egg.




• The diaphragm may be left in place for 24 hours, but more spermicide must be inserted every two hours, or every time sexual intercourse is repeated.


• The diaphragm must be left in place for six hours after sexual intercourse before taking it out.

Does it protect against sexually transmitted infections (STIs)?

No. The diaphragm protects against certain STIs, including gonorrhea and chlamydia, but does not protect against others such as HIV and herpes.

Does it protect against pregnancy?

Yes.

What are the chances of getting pregnant while using a diaphragm?

• Typical use: 20%


• Perfect use: 9%

Advantages to using a diaphragm?

• The diaphragm is often not felt by either partner during sex.


• The diaphragm is easier for women to learn to insert and remove than a similar contraceptive device, the cervical cap.

Disadvantages to using a diaphragm?

• If the diaphragm is left inside the vagina for more than one day (24 hours), the female runs the risk of toxic shock syndrome (TSS).


• The diaphragm can only be left in place for 24 hours, while the cervical cap can be left for 48 hours.


• Mild allergic reactions to the rubber or spermicide occasionally occur.

Things you should know:

• Diaphragms must be initially fitted by clinicians and then purchased by prescription from a drugstore or clinic.


• Cost of purchase is covered by Medicaid.

---

Additional Outside Sources

Below is additional information and resources. Some are links to other Internet pages, which might have information on health topics of interest to you. PAMF, however, does not sponsor or endorse any of these sites, nor does PAMF guarantee the accuracy of the information contained on them. In addition, PAMF has no control over the privacy practices of external Web sites. The user should read and understand the policies of all Web sites with respect to their privacy practices. These links are provided for your general information and education only, and should NOT be relied upon for personal diagnosis or treatment. If you have questions, please contact your health care provider.

Planned Parenthood. Birth Control [Online]. Accessed September 2007.

The National Women's Health Information Center. Birth Control Methods [Online]. Accessed September 2007.
Back to top