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Intrauterine Devices (IUD) and Intrauterine Systems (IUS)

Effectiveness:

• 1-10 years depending on brand
  Typical use: 98% - 99.9%
  Perfect use: 98.5% - 99.9%

 

Advantages:

• Highly effective
• Long-lasting
• Convenient
• Low-risk of side effects
• Fertility rebounds promptly upon discontinuation
• Protective against ectopic pregnancy
• May be protective against certain endometrial and cervical cancers
• Decreased menstrual flow with progestin-only users

Disadvantages:

• Cu T IUD users may have heavier menses in early months of use
• Progestin-only IUD users may have light bleeding or spotting in the early months of use
• At the time of insertion, there may be discomfort followed by cramping pain lasting from 10 to 15 minutes.
• Between 2% and 10% of IUD users spontaneously expel their IUD within the first year.
• Perforation of the uterus can occur at the time of the IUD insertion.
• Does not protect against HIV or other STD's