Intra-Uterine Devices (IUDs) are small T-shaped plastic and copper devices inserted into the uterus to prevent pregnancy. They are one of the most effective forms of reversible birth control.
Types of IUDs:
1. Copper IUDs: These are wrapped with copper wire, which interferes with sperm movement and egg fertilization.
2. Hormonal IUDs: These release hormones such as progestin to thicken cervical mucus and prevent sperm from reaching the egg.
Applications:
1. Contraception: IUDs are one of the most effective birth control methods with a very low failure rate.
2. Menstrual regulation: Hormonal IUDs can reduce heavy menstrual bleeding and even stop periods entirely.
3. Long-term use: IUDs are long-lasting and can remain effective for several years, with minimal maintenance.
4. Postpartum contraception: IUDs can be inserted after childbirth as a long-term contraception method.
Final Answer:
IUDs are small devices inserted into the uterus to prevent pregnancy. They are highly effective for long-term contraception and can also regulate menstrual flow.