Although the IUD contraceptive effect can be achieved, but not once and for all. The fourth military medical University xijing Hospital of Gynecology and obstetrics expert Professor Ye Yongqing said, different types of birth control, useful life are not consistent. Stainless steel metal birth control device can placed 20 years around, to menopause period half a year to 1 years within removed; plastic type or silicone rubber type Palace within birth control device can placed 3-5 years around; plastic mixed ring can placed 5-10 years around; with copper Palace within birth control device can placed 3-5 years; with copper sets instead of wire who can placed 10-15 years around; with pregnant ketone Palace within birth control device General in 1 years Hou pregnant ketone hormone has close release finished, so required by years replaced.
Intrauterine devices is made of different materials, different types and shapes of the IUD and the life of their effects vary. In addition to the stainless-steel ring 10-20 can be placed outside the menopause in the six months to 1 year out, various other types and shapes of intrauterine loop should be expired replacement. Different types and shapes of the loop \"extended service\" will appear different consequences: plastic IUD ring aging; hybrid ring bracket fracture-prone when the IUD removal, loop displacement, deformation can occur, incarceration, broken, adhesion, and other risks, increase the difficulty of taking IUD. In addition, the insertion of \"extended service\" longer, greater incidence of pelvic infections, secondary infertility and increased risk of ectopic pregnancy.
Therefore, the IUD on women should be regularly scheduled replacement should not be extended service. Even if the place without any discomfort since, should also be made before the stipulated age, went to the hospital to replace a new one. Even time is no need for contraception, should also be removed in a timely manner, so as to avoid long-term indwelling removal difficult.
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