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  • You're sold on hormone free birth control with a diaphragm
  • You've already been measured and know your size
  • You're totally frustrated by trying to buy a diaphragm locally

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Contraception With A Diaphragm

At A Glance

  • Silicone dome stops sperm from advancing to the cervix
  • Must be used with contraceptive gel such as ContraGel
  • 94% effective when used correctly
  • Stay in control of your health
  • Virtually no side effects (yay!)

Milex Omniflex Diaphragm

It Just Got A Lot Less Complicated


Buy Natural Spermicide

  • Never been pregnant: Size 22mm
  • Pregnancy without a vaginal delivery: Size 26mm
  • Pregnancy with a vaginal delivery: Size 30mm

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Detailed Info And Support

Non Hormonal Contraceptives and Barrier Contraception

Barrier contraceptives are a key element of non-hormonal contraception. They can be used as a stand alone birth control solution, or as a secondary measure in addition to fertility charting and Fertility Awareness.

Condoms are the most popular barrier contraceptives, but diaphragms are gaining popularity as more women are seeking alternatives to invasive hormones. The introduction of natural spermicide alternatives such as ContraGel, the replacement of latex with silicone, and the new Caya diaphragm, are all helping diaphragms make a comeback for those seeking effective, natural birth control.

To buy a diaphragm in the USA a prescription is needed but that's not the case in most European countries. However, sizing is critical to effectiveness, so you must always be sized by someone trained in diaphragm fitting.

Diaphragms: Empowering Women

Latex and Silicone Diaphragms for Barrier Contraception

Diaphragms were invented in the mid 1800s and peeked in popularity around the 1930s. Then, with the rise of hormonal contraceptives and the pill, diaphragms fell into oblivion. Although they are one of the few female-controlled and extremely low-risk birth control options, many women view this form of birth control as old fashioned, or don't even know it exists.

The traditional diaphragm developed very little during its life, the circular device covers the cervix to prevent sperm from entering the uterus. Better and more comfortable springs and the transition to silicone over latex did improve on the basic functioning of the device.

The Janssen owned Ortho branded All-Flex diaphragm may have been totally removed from the market recently, and we understand that the Reflections diaphragm will soon be withdrawn as well.

Sizing across diaphragm brands is compatible. For example, an All-Flex user with a prescription for a 70mm diaphragm could use a 70mm Milex Omniflex diaphragm.

The Cooper Surgical owned Milex brand diaphragm is still in active production. Milex offers two diaphragm options, each with different spring mechanisms. The Arcing style spring folds in the middle across one axis, and the OmniFlex style is flexible and folds in all directions. The different spring mechanisms do not effect reliability, choosing between the two is a matter of personal preference. The OmniFlex style generally the more popular choice.

RDO Medical currently distributes all sizes of the Milex OmniFlex and Milex Arcing diaphragms and the relevant fitting kits for clinical use as well as ContraGel Green natural contraceptive gel. Both are available for immediate shipping on a wholesale and retail basis.

Caya: A More Accessible Diaphragm

Caya New Generation Of Diaphragm for Barrier Contraception

The Caya diaphragm replaces this difficult sizing system with one single size device. Caya is not a one size fits all diaphragm. Rather, once you are confirmed as fitting within the size range of 65mm to 80mm, you can use Caya without worrying about frequent refitting.

About 80% of women fit into the range of sizes that are compatible with Caya. Women who do not fit in this range must use either a traditional diaphragm or a cervical cap.

Breakthroughs in design technology resulted in a contoured outer spring that conforms more accurately to the vaginal canal. The spring is light and easy to fold. The silicone membrane that covers the spring is extremely thing yet does not sacrifice the strength necessary to insure a will not rip. Raised dots on the sides guide you towards holding the diaphragm between your fingers so that it automatically shapes itself into a narrow cylinder. Two grooves are created within the silicone for contraceptive gel, after which the Caya easily slips into the vagina.

Caya incorporates a small dome at the front of the device to serve as a hook to make it easer to remove.

Fitting and Using Diaphragms

Diaphragm Fitting Kits for Barrier Contraception

The sizing of a diaphragm depends upon the size of the vaginal cavity of the user. A doctor or gynecologist is needed to ascertain the correct size. Every 6-12 months the user should check to see if that size is still correct.

You should be refitted if:

  • You have pelvic surgery
  • You have repeated urinary tract infections
  • You should NEVER guess your correct size and you should NEVER assume it will stay the same. An incorrectly sized diaphragm WILL increase the risk of pregnancy.

    During the check up to ensure that a diaphragm is the best barrier contraceptive choice for you and to measure the correct size, the doctor or gynecologist will also be able to show you how to correctly insert and remove the diaphragm. Not inserting it or removing it correctly will increase the risk of pregnancy.

    It is crucial that a doctor or gynecologist is consulted to confirm a diaphragm is a suitable contraceptive method for you, to correctly measure you for your diaphragm and to instruct you in its correct use. DO NOT attempt to purchase or use a diaphragm until after you have been properly fitted.

    Diaphragm Effectiveness

    Diaphragms for barrier contraception

    Contraceptive Technology reports that the method failure rate of the diaphragm with spermicide is 6% per year. The actual pregnancy rates amongst diaphragm users vary depending on the population being studied, with yearly rates of 10% to 39% being reported.

    Unlike some other cervical barriers, the effectiveness of the diaphragm is the same for women who have given birth as for those who have not.

    The low effectiveness can usually be traced to incorrect usage, therefore it is imperative to check with your doctor or sexual health care consultant in order to be shown how to correctly use the device and become a successful diaphragm user.

    A properly sized diaphragm, used correctly with spermicide and removed correctly afterwards can be a very efficient contraceptive method.

    Side Effects And Diaphragms

    Diaphragms for barrier contraception

    One of the top benefits of Diaphragm use is, unlike hormonal and other more invasive contraceptive methods, there are very few common side effects.

    The most common side effect is an increased risk of urinary tract infections (UTIs). Urinating before inserting the diaphragm and after intercourse may reduce this risk. The increased risk of UTIs may be due to the diaphragm applying pressure to the urethra, which is common if the diaphragm is too large, so always make sure you are using the correct diaphragm size.

    However, the spermicide nonoxynol-9 (N-9) is itself associated with increased risk of a UTI, yeast infection, and bacterial vaginosis so avoiding N9 can have benefits, for this reason you ought to research natural alternatives such as ContraGel.

    Toxic shock syndrome (TSS) is very rare; it occurs at a rate of 2.4 cases per 100,000 women using diaphragms, almost exclusively when the device is left in place longer than 24 hours.

    If you or your partner has a latex allergy, do not use a latex diaphragm.

    Diaphragms should not be used during menstruation because it would interfere with the natural flow of menstrual fluid.

    ContraGel: Enabling Effective Diaphragm Usage Without Chemicals

    Contragel natural spermicide alternative

    Many couples are prevented from using barrier methods of contraception because of the simple fact that those barriers need an additional component of a spermicidal gel, and many report skin irritations as a result of spermicide usage. The active ingredient in most traditional spermicides, Nonoxynol 9, is a chemical that kills sperm on contact. Not surprisingly, a chemical that kills sperm can also cause unpleasant side effects on intimate areas.

    ContraGel is a spermicide alternative that does not contain Nonoxynol 9. The natural ingredients enable the gel to work effectively without overkill of powerful chemicals. Any gaps in the seal of the barrier are pluged by the thick gel. The gel then traps and immobilize sperm attempting to cross the barrier, while the low PH formula causes sperm to rapidly die off.

    The 60 gram tube of ContraGel typically provides 15-20 applications. These numbers are based on the typical requirements of three to four ml applied to diaphragms and cervical caps for each act of intercourse. Additional ContraGel should be applied to the barrier with a finger or vaginal applicator if more then one act of intercourse occurs.

    RDO Medical is the official UK and Eire distributor of ContraGel Green natural contraceptive gel. It is available for immediate shipping on a wholesale and retail basis.

    Learn About The 6 -8 Days Each Cycle When Diaphragms Are Needed To Prevent Pregnancy

    cyclotest can identify your fertility window

    The goal of barrier contraception is to prevent perm from reaching and fertilizing an egg — but fertilization is biologically impossible unless a viable egg is present

    Natural Family Planning (NFP) and Fertility Awareness (FA) identify when there is or is not an egg present, nullifying the need for contraceptives most of the month. Sperm can live inside the womb for up to 5 days, and ovulation releases an egg which is able to be fertilized for one day. That six day span is referred to as the fertility window, and is the only time there is actually a real need for a barrier device.

    >Cyclotest uses Symptothermal fertility charting to identify that fertility window by using a daily basal body temperature (BBT) reading. Changes in the BBT readings help identify ovulation and form the fertility window.

    With 99% reliability, why not let Cyclotest make your contraceptive decisions for you?

    Learn more about using Cyclotest to identify your fertility window at our main website EthicalFamilyPlanning.com



    Diaphragms Available For Immediate Shipping.

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  1. Milex Omniflex Vaginal Diaphragms - For Reusable Birth Control

    Milex Omniflex Diaphragms - For Reusable Barrier Contraception

    Price (Inc. VAT): £39.99

    Learn More

    Milex silicone diaphragm with Omniflex spring mechanism. The Omniflex spring is highly flexible for easy insertion. Available in 60mm, 65mm, 70mm, 75mm, 80mm, 85mm & 90mm. Size must be determined by your doctor or a trained healthcare professional.

    • Highly durable
    • Hypoallergenic
    • Silicone
    • Will not absorb fluids or retain odor
    • Easy to sterilize
    • Broad rim with lip to keep contraceptive gel in place
    • Sizing compatible with Ortho All-Flex sizing
    • Storage box and instructions included
  2. Milex Arcing Vaginal Diaphragms - For Reusable Birth Control

    Milex Arcing Diaphragms - The Reusable Barrier Contraceptive

    Price (Inc. VAT): £39.99

    Learn More

    Milex silicone diaphragm with an arching hinge mechanism. These diaphragms can be compressed across two axises for insertion. Available in 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, & 90mm. Correct size must be determined by your doctor or a trained health care professional.

    • Made from medical grade hypoallergenic silicone
    • Highly durable
    • Will not absorb fluids or retain odor
    • Easy to sterilize
    • Broad rim with lip to keep contraceptive gel in place
    • Sizing compatible with Ortho All-Flex sizing
    • Storage box and instructions included
  3. Caya Single Size Contoured Diaphragm

    Caya Single Size Contoured Diaphragm

    Price (Inc. VAT): £39.99

    Learn More

    The classic barrier contraceptive just got a makeover! A new, more modern diaphragm with advanced design features to make insertion and removal easy and accurate. One size technology reduces the need for refitting.

    Caya in the USA can be ordered from here

    • 100% natural instantly reversible contraception
    • Hormone-free
    • Latex-free
    • Designed for maximum ease of use
    • One Size Fits Most
    • Suitable for 65mm, 70mm, 75mm or 80mm diaphragms users
    • EU / CE 0470 Certified
    • FDA Approved
  4. Milex Diaphragm Fitting Kit

    Milex Diaphragm Fitting Kit

    Price (Inc. VAT): £60.00

    Out of stock

    Learn More

    Milex silicone diaphragm fitting kit. Allows diaphragm sizing to be determined by Doctors or Gynaecologists. Contains 5 diaphragms of 65, 70, 75, 80 and 85mm for sizing purposes, NOT for contraceptive use.


    • High Durability And Longer Use Life
    • Hypoallergenic
    • Avoids Latex Allergy
    • Does Not Absorb Odors or Secretions
    • Sterilizable, Can Be Boiled or Autoclaved
    • Broad Rim With Lip Keeps Gel Inside Diaphragm And Keeps Tight Fit
    • Sizing Compatible With Ortho All-Flex Sizing
    • Storage Box With Lid Included


  5. ContraGel - The Natural Alternative to Spermicide - 60ml Tube

    ContraGel - The Natural Alternative to Spermicide - 60ml Tube

    Price (Inc. VAT): £14.99

    Learn More

    Don't let chemical laden nonoxynol-9 spermicide hinder your goal of all natural contraception. All diaphragms and cervical caps must be used with a contraceptive gel— choose ContraGel instead of N-9 based spermicide to avoid abrasive chemicals and skin irritation.

    ContraGel is available without a prescription. Large 60ml tube provides more applications than leading typical spermicide brands.

    • Enables hormone-free, natural birth control
    • No Nonoxynol-9
    • Non-toxic
    • Vegan
    • Gluten-free
    • Dairy free
    • Waterbased
    • Compatible with YES organic lubricants
    • Over 35 years production history
    • Manufactured in Europe

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