<prompt> . Earliest symptom of carcinoma cervix is:Irregular vaginal bleedingPost coital bleedFoul smelling dischargePain  <response>: Thus earliest symptom is irregular vaginal bleeding which usually follows coitus. So I am taking option a, i.e. irregular vaginal bleeding as the correct answer.Also Know: CIN is most commonly detected in women in their 20s. Peak incidence of carcinoma in situ: 25 - 35 years Ca cervix has bimodal peak - first at 35-39 years and second at 60-64 years. 