Background: Endometriosis, a chronic gynecological disorder characterized by the presence of endometrial-like tissue outside the uterus, significantly impacts the quality of life and physical functioning of affected women. Conventional treatments involve pharmacological interventions and surgery, which may not always provide long-term relief and are often associated with side effects. Objective: This study aimed to evaluate the effects of relaxation, lumbopelvic stabilization, and strengthening exercises on pain, quality of life, and lumbopelvic impairments in women with endometriosis in Faisalabad, Pakistan. Methods: A quasi-experimental design was employed, involving 40 women diagnosed with endometriosis, recruited from local hospitals and fitness centers. Participants underwent a structured intervention consisting of relaxation techniques, lumbopelvic stabilization, and strengthening exercises, conducted three times per week for seven weeks. Data were collected using the Visual Analogue Scale (VAS) for pain, the Endometriosis Health Profile-30 (EHP-30) for quality of life, and specific physical performance tests for lumbopelvic impairments. Statistical analysis was performed using SPSS version 25, employing repeated measures ANOVA to assess changes from baseline to post-intervention. Results: The intervention resulted in significant reductions in pain (VAS scores decreased, p<0.001), improvements in quality of life (EHP-30 scores improved in all domains, p<0.001 for most domains), and enhanced lumbopelvic function (endurance test scores increased, p<0.001). Conclusion: The study findings suggest that structured physical therapy interventions can significantly improve pain, quality of life, and physical functioning in women with endometriosis. These results support the inclusion of physical therapy as a viable component of comprehensive endometriosis management. Keywords: Endometriosis, Physical Therapy, Quality of Life, Pelvic Pain, Lumbopelvic Stabilization, Strengthening Exercises, Non-Pharmacological Treatment.