What is IUD; how does it prevent conception?

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What is IUD; how does it prevent conception?

These are devices that are placed inside the uterus. The basic principle behing the use of IUD is that any foreign material placed inside the uterus prevents the implantation of fertilized ovum. Common IUDs are – loop and copper ‘T’.

A. Loop:

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This consists of a polythene ‘S’ shaped loop with an attached string and can be is inserted into the uterus with the help of a plunger (insertion device). An experienced gynaceologist only can do this. When once side the uterus the loop uncoils. The string is necessary to pull out the loop when it is not necessary (i.e., when conception is needed). Loop has merits as well as some demerits. While it is 100% fool proof, it may cause pain or increase menstrual flow.

B. Copper T:

This is just like loop, but ‘T’ shape and emits small quan­tities of copper which acts as a spermicide. This has to be inserted into the uterus with the help of a gynecologist.

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