Why are several vaginal laser sessions generally performed ?
Several vaginal laser sessions are generally performed to repeat the laser's action on tissues while allowing recovery time between treatments.
Each session induces a controlled tissue reaction. An interval is therefore planned between sessions to give tissues time to recover before the next treatment.
In several studies of the genitourinary syndrome of menopause, the protocol comprises three sessions spaced approximately four weeks apart. This schedule is also frequently used in studies of vaginal dryness and other menopause-related symptoms.
Are three sessions always necessary ?
No. Three sessions correspond to a frequently studied protocol for vaginal laser treatment, but this number is not routinely necessary for every patient or with every laser.
The number of sessions depends on the type of laser used, the indication treated, symptom intensity, the response obtained after the first sessions and the protocol established for the device used.
It is therefore not possible to state that a patient will always need three sessions or that the result will necessarily be optimal after the third session.
How long should you wait between two sessions ?
In most vaginal laser protocols, an interval of approximately four weeks is maintained between two sessions to allow tissues time to recover.
For the genitourinary syndrome of menopause, several studies assessed three sessions performed approximately four weeks apart. For stress urinary incontinence, trials included in a recent Cochrane review used one to three sessions spaced 28 to 45 days apart.
The exact interval depends on the type of laser, settings used and protocol established for the device.
Shortening the interval between sessions or increasing their number has not been demonstrated to produce better results.
Can improvement be noticed before the third session ?
Yes. Some patients may notice improvement after the first sessions, but the response is not identical in every woman.
In a study involving 30 postmenopausal women treated with a fractional CO₂ laser, some symptoms, particularly vaginal dryness, had already improved after two sessions. Improvement continued after the third.
This does not mean that every patient will improve after two sessions. The symptoms assessed, their cause and the type of laser influence results.
The number of sessions should therefore not be determined solely by a schedule : changes in symptoms must also be assessed.
Does having more than three sessions improve results further ?
It cannot be stated that more sessions routinely produce better results.
A recent study specifically compared progress after ,3, 4 and then 5 monthly CO₂ laser sessions in 30 women with genitourinary syndrome of menopause after breast cancer treatment. Dryness had decreased after 3 sessions and continued improving until the fifth.
However, this was a small study without a placebo group, conducted in a specific population. It does not establish that 5 sessions are preferable to 3 for every woman.
Additional sessions should therefore not be scheduled automatically once 3 sessions have been performed.
How many sessions are needed for vaginal dryness ?
For dryness associated with the genitourinary syndrome of menopause, 3 sessions spaced approximately one month apart constitute one of the most extensively studied protocols.
The response must then be assessed against the symptom prompting treatment : the intensity of dryness, irritation, burning or pain associated with intercourse.
Persistent dryness may require checking its origin and discussing other treatments rather than continuing laser sessions indefinitely.
How many sessions are needed for urinary leakage ?
Studies of stress urinary incontinence have used variable protocols, generally comprising one to three sessions.
A Cochrane review published in 2025 identified nine randomised trials involving 689 women. Treatments comprised one to three sessions, spaced 28 to 45 days apart.
This variability shows that there is no validated standard protocol for this indication.
Should maintenance sessions be planned ?
There is no scientifically established standard maintenance schedule after a vaginal laser protocol. Additional sessions should be considered according to changes in symptoms rather than scheduled routinely.
Some studies have assessed further sessions when symptoms return. A recent retrospective study of vaginal laxity reports, for example, that some patients who received an initial protocol of three CO₂ laser sessions underwent additional treatment over the following two years.
These data do not justify routinely recommending a maintenance session every six months or every year.
A further session may therefore be considered if symptoms return, following reassessment to check that laser treatment remains indicated.
How is the number of sessions needed for each patient determined ?
The protocol must be defined according to the symptom treated, the laser used and progress after the first sessions.
For the genitourinary syndrome of menopause, a protocol of 3 sessions spaced approximately 4 weeks apart corresponds to a schedule frequently used in studies. Reassessment then determines whether symptoms have genuinely decreased.
Insufficient improvement does not automatically mean sessions should be added. The initial diagnosis must be checked as correct and the symptom as actually capable of responding to laser treatment.
The number of sessions should therefore be adapted to the indication and clinical response rather than fixed identically for every patient.
In practice, three sessions spaced approximately one month apart constitute a frequently studied protocol, but there is currently no universally demonstrated number of sessions necessary to achieve an “optimal” result.
Article written by Dr Valeria Romano
Dr Valeria Romano supports each patient with a comprehensive approach to the aesthetics of the face, body and intimate areas, and to skin and hair quality. Every treatment is based on a personalised medical assessment.
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