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Vaginal Ring (Nuvaring*)
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- What is it?
- How does it work?
- How effective is it in preventing pregnancy?
- What are the advantages?
- What are the disadvantages?
What is it?
The vaginal ring (also know as Nuvaring* or
"The Ring") is a soft, flexible, clear plastic ring that is inserted
into a women's vagina for three weeks, and then removed for one week. It
is a highly effective and reversible hormonal method of birth control.
- When inserted into the vagina, the ring slowly releases estrogen and
progestin
- These hormones are absorbed through the vagina and into the bloodstream
- The ring does not need to be in a particular position in the vagina to
be effective. It is held in place by the walls of the vagina, and a
woman usually cannot feel the ring once it is in place.
Here is an animated demonstration on how to
insert and remove the vaginal ring.
How does it work?
Like oral contraceptive
pills, the vaginal ring works to prevent pregnancy in 3 ways:
- Stops the ovaries from releasing eggs
- Thickens the cervical mucous making it difficult for sperm to reach the
egg
- Changes the lining of the uterus, making implantation difficult
How effective is it in preventing pregnancy?
The vaginal ring is 99.7% effective when it is used perfectly. With
typical use, it is 92% effective in preventing pregnancy.
What are the advantages?
-
A reversible and highly effective birth control method
- Once a month regimen (no daily routine required)
- Regulates menstrual cycles
- Lighter periods and possibly less cramping
- Does not interfere with sex
- Expected to provide other benefits similar to oral contraceptives
(research is still needed)
What are the disadvantages?
- Does not protect against
sexually
transmitted infections
- Hormones may cause side effects such as: irregular bleeding and
spotting, nausea, breast tenderness, headache, vaginal irritation,
discomfort and discharge
- The ring may fall out (uncommon)
- Women who cannot take estrogen because of a medical problem cannot use
the vaginal ring
- Need a prescription from a health professional
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