Study aim: To assess the effect of counseling based on the Rapport Building, Exploring, Decision Making, and Implementing the Decision (REDI) model versus control group on the sexual satisfaction and quality of sexual life in women with multiple sclerosis Design: This is a randomized clinical trial with a control group with parallel groups without randomization, in which eligible patients will be randomly assigned to the intervention and control groups using block randomization. Settings and conduct: This study will be conducted at the multiple sclerosis Center in Hamadan city, involving 60 eligible women with multiple sclerosis. The patients will be randomly assigned to the intervention and control groups through the block randomization. Blinding is not feasible in this trial. Participants/Inclusion and exclusion criteria: Inclusion criteria: Age 18 to 45 Women with multiple sclerosis Having had active sex in the past 6 months Exclusion criteria: Any physical illness Pregnancy Intervention groups: Intervention group: Routine multiple sclerosis treatment plus counseling sessions based on the relationship building, exploration, decision-making, and decision-making model for 60 to 90 minutes once a week for four weeks Control group: Only routine multiple sclerosis treatment Main outcome variables: Primary outcome: Sexual satisfaction score; sexual quality of life score