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Diaphragm,
cervical caps, and shields all block sperm from getting inside the
uterus. They must be used with spermicidal cream, foam, or jelly
to be most effective. The spermicide works by killing the
sperm. There are several kinds of cervical barriers, and they
each work similarly but are all a little different. The diaphragm is a cup-shaped rubber disk with a flexible rim that covers the cervix. The cervical cap
is a soft rubber cup with a round rim that fits snugly around the
cervix. The brand name for the cervical cap is FemCap®. The
shield is a cup shaped rubber disk with a valve and
loop that is held in place by the vaginal wall. The brand name
for the shield is Lea’s Shield®. All of these methods are types
of cervical barriers.
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| They
do NOT prevent sexually transmitted infections (STIs). Male and
female condoms are the only forms of birth control that also offer
protection against STIs. |
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To insert a diaphragm:
- Wash hands with soap and water.
- Check
the diaphragm for holes. To do this, you can hold it up to the light
and look for tiny holes, or fill it with water and look for
leaks.
- Squeeze about one teaspoon of spermicidal jelly or cream into the cup of the diaphragm. (Note: A lubricant like KY® is not a spermicide. Unless it’s called a spermicidal lubricant, lube does not contain the chemical that kills sperm.)
- Spread a little bit of spermicide around the rim of the diaphragm with a finger.
- To
insert the diaphragm, hold it with the cup facing down. Squeeze
the opposite sides of the rim so that the diaphragm folds.
- Find a comfortable position such as standing with one foot propped up, sitting with legs apart or lying down.
- With
one hand, spread the lips of the vagina. With the other hand,
gently insert the folded diaphragm into the vagina.
- Push
the diaphragm backwards until it reaches the back wall of the
vagina. The diaphragm will be in place when the front rim is
tucked behind the pubic bone.
- If the diaphragm can still be felt, push it farther into the vagina. Don’t worry, it can’t get lost in there!
- After sex, the diaphragm must be left in place for at least 6 hours, but don’t keep it in for more then 24 hours.
- To remove the diaphragm, locate the front rim with a finger, and then pull it down and out of the vagina.
- Wash the diaphragm with soap and water and dry it.
To insert a cervical cap:
- Wash hands with soap and water.
- Check
the cervical cap for holes. To do this, you can hold it up to the light
and look for tiny holes, or fill it with water and look for leaks.
- Squeeze spermicidal jelly or cream into the cup of the cervical cap to 1/3 full. (Note: A lubricant like KY® is not a spermicide. Unless it’s called a spermicidal lubricant, lube does not contain the chemical that kills sperm.)
- To insert the cap, hold it with the cap facing down. Squeeze the opposite sides of the rim so that the cap folds.
- Find
a comfortable position such as standing with a foot propped on a chair,
sitting with legs apart or lying down. With one hand, spread the lips
of the vagina. With the other hand, gently insert the folded cap
into the vagina.
- Push
the cap backwards until it reaches the back wall of the vagina.
Press the rim of the cap around the cervix until it is completely
covered. Test the position of the cap once it is inserted by
pressing it to make sure that the cervix can be felt, and by running a
finger around the rim to make sure that the cervix is completely
covered.
- After sex, the cap must be left in place for 6 to 8 hours, but no more then 48 hours.
- To
remove the cap, stick a clean finger inside the vagina to locate the
cap rim on the cervix, and use a finger to release the suction by
pressing on the cup. Hook a finger around the rim and pull it out
of the vagina.
- Wash the cap with soap and water and dry it.
To insert a shield:
- Wash hands with soap and water.
- Examine the shield carefully for holes.
- Coat
the inside of the shield’s bowl, the rim of the bowl and the valve with
spermicidal jelly or cream. (Note: A lubricant like KY® not a spermicide. Unless it’s called a spermicidal lubricant, lube does not contain the chemical that kills sperm.)
- To
insert the shield, hold it with the bowl facing down. Squeeze the
opposite sides of the rim so that the rim folds together.
- Find a comfortable position such as standing with a foot propped on a chair, sitting with legs apart or lying down.
- With one hand, spread the lips of the vagina. With the other hand, gently insert the folded shield into the vagina.
- Push
the shield backwards until it reaches the back wall of the
vagina. Press the rim of the shield around the cervix until it is
completely covered. Test the position of the cervix by running a
finger around the rim to make sure that the cervix is completely
covered.
- After sex, the shield must be left in place for 8 hours, but no more than 24 hours.
- To remove the shield, grasp the loop with one finger and pull it gently out of the vagina.
- Wash the shield with soap and water and dry it.
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