CClinicalTrials.gg
CompletedNCT02708615Updated Dec 18, 2023

Gynaecological Speculum Examination: Straight Horizontal Insertion Versus Vertical Insertion and Rotation.

An interventional study of Type of speculum vaginal insertion method in Vaginal Speculum Examination, sponsored by Unity Health Toronto. Completed at 1 site in Canada. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-12-18.

Sponsored by Unity Health Toronto · Not applicable, Interventional, and Other

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Nov 2015, registered Mar 2016).
Phase
Not applicable
Study type
Interventional
Enrollment
41
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

This study compares two different types of speculum insertion to determine the level of discomfort they might cause. This study compares the straight horizontal insertion (SHI) of the speculum and the vertical insertion and rotation (VIR).

Participants are randomly assigned to one of the two insertion groups and are not told which group they are in until the examination is over. Participants rate their level of discomfort immediately after insertion of the speculum.

Basic demographic information (e.g., age, ethnicity, number of vaginal deliveries, menopausal status, etc.) and clinical information are also collected to determine if other factors influence the level of discomfort experienced.

*NOTE* This is NOT a paid study.

Read the detailed description

In most medical schools around the world, speculum examination is taught using a bivalved speculum, since this is the type of speculum most commonly used in clinical practice. Due to the oval shape of the vulva, and the alignment of the labia majora and minora, the aperture of vaginal introitus is commonly perceived to have a vertical orientation. In reality however, the vaginal introitus is round and the vagina itself has more of a horizontal orientation: the anterior and posterior vaginal walls are opposed, and the sidewalls only become apparent once the anterior and posterior walls are separated. Nevertheless, the most common way of teaching the speculum examination worldwide is to introduce the speculum in a vertical orientation and then once it is successfully inserted into the vagina to rotate it 90° into a horizontal position. Once it is correctly positioned, it is slowly opened to visualize the vaginal epithelium and the cervix. However, in clinical practice, the rotation of the speculum in the vagina may cause pain and discomfort. Introduction of the speculum initially in a horizontal orientation, without rotation in the vagina, seems more appropriate and could potentially be associated with less discomfort or pain for women undergoing this exam. In practice, a minority of clinicians separate the labia first, introduce the speculum in a direct horizontal fashion, and thus avoid the potentially uncomfortable twisting part of the procedure.

02

Conditions studied

  • Vaginal Speculum Examination
03

In context

Lead sponsor

Unity Health Toronto is the lead sponsor of 434 studies on the registry; 76 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Women who are 18 years of age or older
  • Undergoing a speculum examination as part of their regular clinical care
  • Proficient knowledge of the English language and able to sign the informed consent form

Exclusion criteria

Exclusion Criteria:

  • Younger than 18 years of age
  • Women with a history of vulvodynia, vaginismus, or dyspareunia
  • No prior sexual activity or intercourse
  • Active vaginal, cervical, uterine or adnexal infection
  • Active pregnancy or within 6 weeks postpartum
  • Vulvar or vaginal surgery within three months
  • Psychiatric conditions
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
41 participants (actual)

Study arms

  • Other
    Vertical rotation

    Vertical insertion and 90 degree rotation of speculum in vagina

    Other: Type of speculum vaginal insertion method

  • Other
    Straight horizontal insertion

    Straight horizontal insertion of speculum with no rotation in vagina

    Other: Type of speculum vaginal insertion method

Interventions

  • OtherType of speculum vaginal insertion method

    Speculum insertion type will either be vertical rotation (as per common practice in Canada) or straight horizontal insertion

06

What researchers measure

Primary outcomes

  1. Pain/discomfort ratings of women receiving straight horizontal speculum insertion vs. those receiving vertical speculum insertion and rotation, as measured by a visual analog scale

    The primary objective of this study is to quantify the amount of pain/discomfort women experience with two different types of speculum insertion: straight horizontal insertion (SHI) and vertical insertion and rotation (VIR). Participants will rate their pain/discomfort by placing a mark on a visual analog scale measuring 10 cm in length. Pain/discomfort ratings on this scale range from "no pain" to "pain as bad as it possibly could be".

    Time frame: Measured immediately after speculum insertion

07

Study locations

1 site
  • St. Michael's Hospital
    Toronto, Ontario M5B 1W8, Canada
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02708615
Lead sponsor
Unity Health Toronto
Responsible party
Sponsor
First posted
Mar 15, 2016
Start date
Nov 27, 2015
Primary completion
Nov 27, 2021
Completion
Nov 27, 2021
Last update
Dec 18, 2023

Study contacts

Mark Yudin, MD
principal investigator · Unity Health Toronto

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.

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