The present study aims to determine the gynecologic health status of asymptomatic\nwomen at a unique Japanese Health Check-up Institute, Ningen Dock.\nMedical records of Japanese women, who underwent gynecological medical\n(health) examinations between January 2011 and December 2016, were retrospectively\nreviewed. Of the cervical smears from 8927 women aged 18 - 85\nyears, 50 (0.6%) were classified as dysplastic and malignant changes: 18 of\nlow-grade squamous intraepithelial lesion, 10 high-grade squamous intraepithelial\nlesion, 21 atypical squamous cells of undetermined significance and 1\ncervical squamous cell carcinoma. No case of cervical adenocarcinoma was\nfound. Ultrasonographic examination detected uterus enlargements and ovary\ntumors in 2.0% and 0.9% of cases, respectively. Most of participants (95.6%)\nrevealed no gynecologic abnormalities. The present study based on the\nrecords of Ningen Dock, where asymptomatic participants undergo a medical\nexamination at their own expense, showed very low incidence of abnormal\ncytologic and/or ultrasonographic findings.
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