Low-level laser therapy to reduce pain and improve healing after vaginal birth injuries

Effectiveness of low-level photobiomodulation in pain control and healing of second and third-degree perineal lacerations in postpartum women: a randomized, controlled, triple-blind clinical trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

REBEC

Registry ID

RBR-2x4zkwm

Enrollment

170

Registered

2026-07-13

Start date

2025-09-17

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Wound Healing Wounds and Injuries

Interventions

This is a triple-blind randomized controlled clinical trial. The sample size calculation was based on the study by Alvarenga (2017), which aimed to evaluate the effect of photobiomodulation on pain an

Eligibility

Sex/Gender

Female

Age

19 Years to 40 Years

Inclusion criteria

Inclusion criteria: Postpartum woman aged between 19 and 40 years in the immediate vaginal postpartum period; Postpartum woman with second- or third-degree perineal laceration

Exclusion criteria

Exclusion criteria: Trauma in the perineal region (prior to delivery);Postpartum woman with diabetes; Postpartum women who underwent episiotomy; Postpartum hemorrhage

Design outcomes

Primary

Measure	Time frame
The use of low-intensity photobiomodulation reduces pain in second- and third-degree perineal lacerations in postpartum women in the immediate postpartum period.	—

Secondary

Measure	Time frame
The use of photobiomodulation in postpartum women with second- and third-degree lacerations compared to the control group: improves healing; improves maternal satisfaction level; analgesic use.	—

Countries

Contacts

Public ContactAlessandra Freire

Universidade Federal de Pernambuco

alessandraboaviagemf@gmail.com+55-81-987659757

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Aug 10, 2026