Simulation · Biology · Class 12
What an IUD does inside the uterus
From the lesson Intra-uterine devices in Reproductive Health. Change the values and watch what happens.
What an IUD does inside the uterusBiology · Class 12
The idea behind it
NCERT §3.2
- IUDs are placed in the uterus through the vagina by doctors or expert nurses.
- Three kinds: non-medicated (e.g. Lippes loop); copper-releasing (e.g. CuT, Cu7, Multiload 375); hormone-releasing (e.g. Progestasert, LNG-20).
- All IUDs increase phagocytosis of sperms inside the uterus.
- Copper IUDs also release Cu ions, which suppress sperm motility and the sperms' fertilising capacity.
- Hormone-releasing IUDs do more: the uterus becomes unfit for implantation and the cervix becomes hostile to sperms.
- IUDs suit females who want to delay pregnancy or space children, and they are one of the most widely accepted contraceptive methods in India.