Coil
Coil (medical)
Coil (pronounced: /koil/), also known as an Intrauterine Device (IUD), is a small, often T-shaped birth control device that is inserted into a woman's uterus to prevent pregnancy. The term "coil" is derived from the spiral shape that some early versions of the device had.
Types of Coils
There are two main types of coils: Copper Coil and Hormonal Coil.
- The Copper Coil (also known as a copper IUD) is a plastic device that has a copper wire wrapped around its stem. The copper is toxic to sperm and helps prevent it from reaching the egg.
- The Hormonal Coil (also known as a hormonal IUD) releases progestin, a hormone that thickens the cervical mucus to prevent sperm from reaching the egg. It also thins the lining of the uterus, which makes it less likely that a fertilized egg can attach to it.
Usage
A coil is inserted into the uterus by a healthcare professional. It can remain in place for up to 10 years, depending on the type. Coils are a form of long-acting reversible contraception (LARC), which are highly effective methods of birth control.
Related Terms
See Also
External links
- Medical encyclopedia article on Coil
- Wikipedia's article - Coil
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