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Barrier Methods of
Birth Control
Female Condom
The
female condom is a non-prescription,
pre-lubricated, pouch-like device that lines the walls of the vagina.
It is made of polyurethane and has a soft ring at each end.
The ring at the closed end is used to put the condom against the
cervix and helps to hold it in place.
The open end of the condom stays outside of the vagina and is held
in place by the outer ring. The
female condom acts as a
barrier to prevent the sperm and egg from joining.
It can be inserted six hours prior to intercourse so it does not
decrease spontaneity. This
method of birth control is between 79% - 95% effective and a new condom
must be used every time a person has intercourse.
The female condom also protects against many sexually transmitted
infections (STI).
Advantages
·
Easy to buy in
drugstores, supermarkets, etc.
·
Can be used by
people with latex allergies
·
External ring may
stimulate the clitoris
·
This method allows
women to have control over
reducing
the risk of STI
Disadvantages
·
May
be difficult to insert and has been reported as being
noisy during intercourse
·
Female
condoms are more costly than male condoms
·
Some
women may feel slight discomfort or irritation while using
a
female condom
Female Condom
Male
Condom
This
is a latex or polyurethane sheath that fits over an erect penis before the
penis enters the vagina. A condom prevents pregnancy by containing sperm
during intercourse, preventing the sperm from entering the uterus and
fertilizing the egg. To work
effectively, a new condom must be used every time an individual has
intercourse. The male condom
is between 88% - 98% effective and is one of the best forms of protection
against sexually transmitted infections (STI).
Advantag
es
·
Condoms
give the greatest protection against STI
·
Condoms
let men and women share the responsibility
for
birth control
·
Condoms
are easy to obtain; they can be found at
drug
stores, supermarkets and may be free at various agencies
Disadvantages
·
Some
people are allergic to latex and may need to
buy
polyurethane condoms, which are more expensive
·
Condoms
may dull the sensation for either partner.
This can
be
helped by using a water based lubricant both inside and
outside of the condom
Diaphragm
& Cervical Cap
A
diaphragm is a round piece of thin rubber attached to a round rim.
The muscles of the vagina hold it in place.
A cervical cap is a small piece of rubber with a hard rim and soft,
domed top. It stays in place by suction over the cervix (the opening to
the uterus at the top of the vagina).
Either method can be inserted up to six hours before intercourse,
and must not be removed until at least six hours after ejaculation.
It is recommended that both of these methods be used with
spermicidal jelly. Both
methods block sperm from entering the uterus and fertilizing the egg.
Diaphragms and cervical caps come in different sizes.
In order to ensure a correct fit, a woman must consult her doctor
to get a prescription. The diaphragm is 81% to 95% effective and the
cervical cap is 82% to 94% effective.
These methods do not protect against sexually transmitted
infections.
Advantages
·
No major health
concerns are related to using either method
·
Can be used during
breast feeding
·
Only needs to be
replaced every 6 – 12 months or after losing
or gaining more than 10
pounds or after a vaginal birth
Disadvantages
·
Some
people are allergic to the diaphragm or cervical cap
and/or the spermicide
that is recommended with these methods
·
Some
women are more likely to have bladder infections when
they use a diaphragm
·
Although
rare, women can get Toxic Shock Syndrome
from
leaving either the diaphragm or cervical cap in for
long periods of time
Diaphragm
Cervical cap
Sponge
The
contraceptive sponge is a small, disposable plastic (polyurethane) foam
device that measures approximately five centimeters in diameter.
Spermicide, which kills the sperm or leaves them inactive, is
released from the sponge for up to 12 hours while the sponge is in place.
Before intercourse, insert the sponge into the vagina far enough to
cover the cervix (the opening to the uterus at the top of the vagina).
Insert the sponge any time prior to sexual intercourse. It remains
effective even if intercourse takes place more than once and needs to be
left in at least six hours after intercourse (for a maximum of up to
twelve hours after being inserted). The
sponge is 72% to 82% effective. The
sponge does not protect against sexually transmitted infections (STI).
Advantages
·
No
major health concerns are related to using the sponge
·
Women
do not need a prescription for the sponge and it is
readily available in
drugstores and supermarkets
Disadvantages
·
It
does not protect against STI
·
Some
women may be allergic to the spermicide contained
in the sponge
·
The
sponge cannot be used during menstruation
·
Women
can get toxic shock syndrome if the sponge is left in
for more than 12 hours
Sponge
Lea’s
Contraceptive
The
Lea’s contraceptive (or Lea’s shield) is a reusable soft silicone
device that can be inserted into the vagina to cover the cervix.
Lea’s contraceptive acts as a barrier to prevent the sperm and
egg from joining. Women do not
need to have the Lea’s contraceptive fitted by a doctor as one size fits
all, and it can be bought over the counter at most pharmacies (often, the
pharmacy may not have Lea’s contraceptive in stock and may have to order
it in). Lea’s contraceptive
can be inserted anytime before intercourse and can be left inside a
woman’s vagina for up to 48 hours. Women
must leave Lea’s contraceptive in place for at least eight hours after
ejaculation. When used with
spermicide, Lea’s contraceptive is 79% to 92% effective.
Lea’s contraception does not protect against sexually transmitted
infections.
Advantages
·
Lea’s shield can
be left in the vagina for up to 48 hours
·
Available without a
prescription
Disadvantages
·
Male partner may
feel Lea’s contraceptive during intercourse
(if this
happens it is
usually because it is not inserted correctly)
·
May be awkward for
women to insert
Lea’s contraceptive (or Lea’s shield)
Spermicides
Spermicides are chemicals that
either kill sperm or leaves them inactive.
The chemical that is used in spermicides is called nonoyxynol-9 and
it comes in many forms including: foam, cream, gel, film and
suppositories. It is recommend
that spermicides be used in conjunction with other forms of birth control
to decrease the chances of pregnancy.
When used alone spermicides are 79% effective.
Spermicides do not offer protection against sexually transmitted
infections. Using
the spermicide nonoxynol-9 many times a day, by people at risk for HIV,
may irritate tissue and increase the risk of HIV and other sexually
transmitted infections.
Advantages
·
Minimal side
effects
·
Available in
drugstores, supermarkets, etc.
·
Certain types of
spermicides can add extra lubrication for intercourse
Disadvantages
·
The perfume or
nonoxynol-9 used in spermicides might
cause
itching, swelling or burning in some people
·
Some people do not
like the taste of spermicides
Spermicides
We
have free male condoms available.
All of the counselling services at
CBCA are free and confidential.
Contact us at:
Phone: (403) 283-5580 Fax: (403) 270-3209
E-mail at generalmail@calgarysexualhealth.ca
We
are located at
304, 301-14th. Street NW
Calgary, Alberta T2N 2A1
Canada
Hours of operation are:
Monday to Friday 9am to 5pm
New drop in hours starting September 28, 2009
Monday all day from 9am to 5pm
Tuesday and Wednesday from 9am to 1pm
Thursday and Friday from 12pm to 5pm
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