Postcoital Bleeding and Cervical Cancer Screening
A 41-year-old woman has three months of bleeding after intercourse. Her cycles have become irregular over the past year and she has never attended cervical screening. Speculum examination shows a friable area on the anterior cervical lip that bleeds on contact. The uterus is normal-sized and mobile with no adnexal masses, and a urine pregnancy test is negative. Which of the following is the most appropriate next step in management?
- A.Dilatation and curettage under anaesthesia
- B.Transvaginal pelvic ultrasound
- C.Office endometrial biopsy
- D.Cervical cytology with human papillomavirus testingCorrect
Explanation
Postcoital bleeding points to a cervical rather than an endometrial source, because the friable epithelium of a cervical lesion is traumatised during intercourse. The differential includes cervical ectropion, cervicitis, cervical polyp, and most importantly cervical intraepithelial neoplasia or invasive cervical carcinoma, so the cervix must be evaluated first in a woman who has never been screened. Cervical cytology with high risk human papillomavirus co-testing is the correct initial investigation and is performed at the same visit as the speculum examination. A crucial caveat is that cytology is a screening tool with limited sensitivity for frank invasive disease, so any visible suspicious cervical lesion should be biopsied directly regardless of the cytology result, and a negative smear must never be used to reassure a woman with a visible abnormality. Pelvic ultrasound assesses the uterus and adnexa and is useful for abnormal uterine bleeding of uterine origin, but it does not evaluate the cervical epithelium. Endometrial biopsy is indicated for abnormal uterine bleeding in women 45 years or older, or younger women with risk factors such as obesity, anovulation, or unopposed oestrogen exposure, and is a reasonable adjunct here for the irregular cycles but is not the first step for postcoital bleeding. Dilatation and curettage under anaesthesia is more invasive, less accurate than directed biopsy, and is rarely a first-line diagnostic procedure today. Treatment of confirmed cervical cancer is stage dependent, from conisation for microinvasive disease to radical hysterectomy or chemoradiation.
Why each option
- A.
- Dilatation and curettage is invasive, requires anaesthesia, and has been superseded by office sampling and directed cervical biopsy.
- B.
- Ultrasound images the uterine cavity and adnexa but cannot assess cervical epithelium, which is the site generating postcoital bleeding.
- C.
- Endometrial sampling addresses intermenstrual and heavy bleeding of uterine origin and is not the first step when the cervix is visibly abnormal.
- D.
- Correct. Postcoital bleeding is a cervical symptom, and cytology with human papillomavirus testing plus direct biopsy of any visible lesion is the initial evaluation.
Reference: ASCCP Risk-Based Management Consensus Guidelines, 2019 (updated 2024)
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