IRCT20260421069119N1 IRCT 2026-05-11 Mashhad University of Medical Sciences The effect of group counseling on endometriosis. The effect of group counseling based on Leventhal's self-regulation theory on the illness perception and quality of life of women with endometriosis. 2026-05-22 anticipated 64 Recruiting https://irct.ir/trial/89562 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Education/Guidance, Randomization description: In this study, block randomization and sample selection method are available. Permutation blocks method was used to generate the sequence of random assignment of people to the studied groups. Random allocation sequence of people was done using Random Allocation Software and block size of four. The permutation block method is one of the random allocation methods in which each block is selected according to the number of studied groups. Sealed envelopes are used to hide the assignment. Based on the order of arrival of the research units, the envelopes will be opened in order and the assigned group will be revealed. N/A endometriosis. Intervention 1: Intervention group:. Intervention 2: Control group:. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Considering the nature of the information collected from the participants in this research and in order to fully respect privacy and ethical principles, as well as maintain data security, it has been decided not to publicly release the files containing the participants' information. This decision has been taken with the aim of preventing any possible abuse and ensuring the confidentiality of people's information. The findings and key results of the research will be available to the public in an analyzed form, and there is no need to publish the raw data of the participants to achieve the scientific goals of this research.