Mechanism of Action
The copper IUD's primary mechanism of action is to prevent fertilization. Copper acts as a natural spermicide within the uterus. The presence of copper increases the levels of copper ions, prostaglandins, and white blood cells within the uterine and tubal fluids.
Although not a primary mechanism of action, some experts in human reproduction believe there is sufficient evidence to suggest that IUDs with copper can disrupt implantation, especially when used for emergency contraception. Despite this, there has been no definitive evidence that IUD users have higher rates of embryonic loss than women not using contraception. Therefore, the copper IUD is considered to be a true contraceptive and not an abortifacient.
Read more about this topic: IUD With Copper
Famous quotes containing the words mechanism of, mechanism and/or action:
“Life is an offensive, directed against the repetitious mechanism of the Universe.”
—Alfred North Whitehead (18611947)
“The law isnt justice. Its a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer. A mechanism is all the law was ever intended to be.”
—Raymond Chandler (18881959)
“When the course of events shall have removed you to distant scenes of action where laurels not nurtured with the blood of my country may be gathered, I shall urge sincere prayers for your obtaining every honor and preferment which may gladden the heart of a soldier.”
—Thomas Jefferson (17431826)