This double-blind, randomized controlled experimental study aims to determine the effect of Reiki therapy administered to infants with infantile colic (aged 3 weeks to 6 months) on infants' colic symptoms and crying duration, as well as on mothers' fatigue levels and quality of life.

The study population consists of infants aged 3 weeks to 6 months who are diagnosed with infantile colic and present to pediatric health and disease outpatient clinics between July 2025 and July 2026. A total of 44 infants meeting the inclusion criteria will be randomly assigned to either the Reiki group (n = 22) or the control group (n = 22).

Data will be collected using the Mother and Infant Descriptive Information Form, the Infantile Colic Scale, the Crying Duration Recording Form, the Visual Analogue Scale for Fatigue (for mothers), and the World Health Organization Quality of Life Scale (WHOQOL) (for mothers).

Reiki therapy will be administered to the intervention group twice on alternate days for 20-30 minutes per session. The control group will not receive any intervention.

The study population consisted of infants aged 3 weeks to 6 months who were diagnosed with infantile colic and met the inclusion criteria, presenting to pediatric health and disease outpatient clinics.

This study was designed as a double-blind, randomized controlled experimental study with a pretest-posttest design to determine the effect of Reiki therapy administered to infants with infantile colic on infants' colic symptoms and crying duration, as well as on mothers' fatigue levels and quality of life.

To ensure homogeneous distribution of the groups, randomization was performed using a computer-based program (http://www.randomization.com

, balanced permutation method). Infants who met the inclusion criteria and whose families agreed to participate were randomly assigned to either the experimental (Reiki) group or the control group according to the randomization list.

The control variables of the study were the infants' demographic characteristics, while the dependent variables were colic pain, crying duration, maternal fatigue level, and maternal quality of life scores.

Inclusion Criteria:

• Infants aged between 3 weeks and 6 months.
• Diagnosed with infantile colic by a physician during the study period.
• Birth weight between 2500 and 4000 grams.
• No presence of any chronic disease in the infant.
• Family voluntarily agrees to participate in the study.
• Mother has no visual or hearing impairments.
• Mother is open to communication and cooperation.
• Mother is able to read and understand Turkish.
• Neither the mother nor the infant has received any form of energy therapy (e.g., yoga, Reiki, massage, meditation, or healing touch) within the last five months.

Exclusion Criteria:

• Infants with any acute or chronic illness.
• Infants with congenital anomalies.
• Mothers with diagnosed psychological or mental health disorders.
• Infants diagnosed with lactose intolerance by a physician.
• Infants who have previously been diagnosed with infantile colic and are continuing medical treatment for this condition.

The research consists of 2 groups. These groups are Reiki group, control group.