Introduction
Vaginal examinations (VEs) are a common intervention performed during labour with the primary intent of assessing cervical dilatation as well as offering other information. While many clinicians challenge their value, frequency and necessity (Warren, 1999; Crowther et al., 2000; Walsh, 2000a; Royal College of Midwives (RCM), 2005), they do remain a skill that the midwife frequently undertakes.
Incidence and facts
- A study by Lewin et al. (2005) of women’s experiences of VEs found:
- Many women find VEs uncomfortable and embarrassing, sometimes traumatic and distressing. They can trigger feelings of sexual intimacy, invasion of privacy and vulnerability and can be especially difficult for women who have been sexually abused (Nolan, 2001).
Accuracy and timing of VEs
‘Repeated VEs are an invasive intervention, of, as yet, unproven value. Those who advocate their use thus have the responsibility to test their belief in an appropriately controlled trial’ (RCM, 2005 citing Enkin, 1992).
- VEs are relied upon to assess labour progress, and as such they do appear to be a useful guide; however, studies have found that VEs can be an imprecise measure of labour progress particularly when performed by different examiners (Crowther et al., 2000). Where possible, therefore, they should be carried out by the same clinician (RCM, 2005).
- In multiparous women, cervical dilatation does not always correlate to their true labour progress, which is sometimes more accurately reflected in their typical labour behaviour and vocalisation.
- Simkin and Ancheta (2005) describe the importance of additional measures of progress including cervical consistency, thinning and effacement, movement from posterior to anterior and the importance of good cervical application to the presenting part.
VEs are the main focus for assessing progress of labour; Warren (1999) suggests midwives ask themselves, ‘What decision has to be made at this time which requires information that can only be obtained from a VE?’
- The timing and accuracy of VEs varies:
- Definitions of progress vary (Crowther et al., 2000) but a cervical dilatation of 0.5 cm/hour is advised in the NICE (2007) intrapartum guidelines.
Labour progress issues are discussed further in Chapter 8.
Information sharing: informed consent or compliance?
A study of women’s experiences of VE and information giving in labour found that two thirds of midwives provided good or very good information at this time. The equivalent for doctors was just a third (Lewin et al., 2005).
- Discuss the indication for the examination.
- Check if this is the woman’s first VE (often it is).
- Explain what it may feel like and typically how long it may last.
- Offer a chaperone irrespective of the clinician’s gender ( Royal College of Obstetricians and Gynaecologists (RCOG), 1997).
- In non-English speaking women, ensure an interpreter/advocate is available (RCOG, 1997).
Implied consent (including written consent) may not be sufficient evidence that someone has given express consent (GMC, 1998). Many women conform or comply with suggestions for which, when they later reflect, their informed and express consent had not actually been sought. Performing a vaginal examination without express consent may constitute assault and has medico-legal implications (RCM, 2005).
If consent is withheld:
- Remain sensitive, open and accept her decision. (You may have to protect the woman from pressure to comply from particular colleagues.)
- Seek alternative methods of assessing progress in labour as discussed in Chapter 1 under the heading ‘Assessing progress in labour’.
- Consider that many women, including survivors of sexual abuse, may not be able to cope with invasive, intimate procedures in labour (see later in this chapter).
Performing a VE
Stewart (2006) found that midwives sanitise their terminology, using abbreviations (a VE) and euphemisms (an ‘internal’) to distance themselves from intimacy and embarrassment. She comments that some midwives ceremonially prepare a sterile trolley, opening packets and performing a ritualised washing down of the woman’s external genitalia as an overt statement of power and an attempt to sanitise the woman’s bodily fluids perceived as ‘dirty’. Since women are capable of cleaning themselves, this practice, which exposes them to high levels of genital touching and embarrassment, has little basis in necessity. In contrast to this, other midwives use an informal, speedier approach, while maintaining asepsis, by squeezing lubricant inside the opened packet of sterile gloves and donning them discreetly.
Despite VEs being undertaken frequently, the procedure lacks good evidence to guide best practice.
VE procedure
- Ensure the woman’s bladder is empty.
- Provide privacy: directly ask any unnecessary people present to leave the room. Never underestimate someone’s potential embarrassement or vulnerability even if attending a birth at home. Ensure doors are closed, curtains drawn and in hospital display a ‘please knock and wait’ sign on the door.
- Cover up the woman’s lower half with a sheet/dressing gown.
- Abdominal palpation first! This is a good habit to get into.
- In the absence of useful evidence, it seems prudent if the membranes are not intact, the labour is preterm or prolonged or infection is a possibility, that sterile gloves should be worn.
- Evidence suggests a douche or wash down, even using chlorhexidine is of no benefit in reducing ascending infection (Lumbiganon et al., 2004).
- Tell the woman that if she wants you to stop at any point or the VE ‘hurts’ she can trust that you will respond appropriately.
- Sit next to the woman and encourage her to relax her thighs and bottom before commencing the VE. Use plenty of lubricant and gently advance two fingers inside the vagina.
- Never start a VE during a contraction: it is unnecessary and painful. If the woman has a contraction during the VE (commonly triggered by you touching the cervix), keep fingers still and talk her through or remove them.
- Explain what you are doing, particularly when moving your fingers anteriorly (usually the most uncomfortable and sensitive area) and be aware of the woman’s body language; actually ask her if she is okay.
- Be aware of your own body language when performing a VE. Avoid looking disapproving, worried, disappointed or disconnected from what is happening.
For VE findings see Box 2.1 and Fig. 2.1
Following the examination
Always smile and congratulate the woman on how well she coped and discuss the findings. If approached with sensitivity and the findings are good news, this can lift the woman’s spirits and reassure her. However, the opposite is also true; if handled insensitively or the news is poor, a VE can be a distressing or negative experience. Try always to find something positive to say, even if there is little change.
- Listen to the fetal heart rate (FHR).
- Offer the woman a sanitary towel and assist her into a comfortable position, ideally upright and off the bed.
- Document your findings.
- Healthy or identify potential problems including female genital mutilation/circumcision, genital warts and offensive smelling discharge
- Location (posterior, mid, central, anterior or lateral)
- Consistency (soft or firm, thick or thin, rigid or stretchy)
- Application (loosely, moderately or well applied)
- Effacement (uneffaced, partially or fully effaced)
- Dilatation (os closed, 1–9 cm, anterior lip, 10 cm or fully dilated)