What are the fail rate of tubal ligation compare to the copper iud ?

Need more info: I am a strong proponent of the adage "if anything can happen, it will". Tubal ligation means that the sperm will be blocked from traveling through the Fallopian tubes. The copper IUD while it is an efficacious product is not always 100% effective in preventing a pregnancy. The tubal ligation many times is permanent while the IUD can be easily removed if & when you want to become pregnant.

About 1 to 8 /1000: For all forms of "female tubal sterilizations" performed by a variety of abdominal surgery, diverse laparoscopic operations and hysteroscopic procedures:1 to 5 women /1000 may get pregnant over 10-20 years ("fewer than 1 pregnancy per 100 women in a year")Reported failure rate of the copper IUD varies between1 to 8/1000 women over 10 years ("fewer than 1 pregnancy per 100 women in a year")0.5-0.8%