Based on a WHO report, cervical cancer is worldwide the second most frequent cancer in women. The incidence of cervical cancer is the highest in Taiwan so it can be said as an invisible killer to woman health. It is most frequently diagnosed in women between the ages of 25-45. Death rate from cervical cancer is the fourth most lethal in female cancer representing 4% of all cancer deaths which trails lung cancer, liver cancer and colon cancer. Taiwan government launched pap smear screening program in 1995. After more than 20 years now, cervical cancer cases have dropped significantly.