Mesenchymal Stem Cells Therapy for Intrauterine Adhesions and Endometriosis: Potential, Mechanisms, and Future Directions.

Intrauterine adhesions (IUA) and endometriosis are debilitating gynecological disorders that impair endometrial function and fertility. IUA, typically caused by iatrogenic trauma to the basal endometrium, leads to fibrosis and infertility, whereas endometriosis, characterized by ectopic endometrial growth, induces chronic inflammation, pain, and subfertility. Current treatments, such as surgical adhesiolysis for IUA and hormonal suppression for endometriosis, frequently fail to address underlying pathological mechanisms, including aberrant fibrosis, inflammatory cascades, and impaired tissue regeneration. Recently, mesenchymal stem cells (MSCs) have emerged as a promising therapeutic approach. Their therapeutic benefits are mediated primarily through paracrine actions, which modulate immune responses, promote tissue repair, and attenuate inflammation and fibrosis. Recent studies have further highlighted the potential of MSC-derived exosomes (MSC-Exos) as a cell-free alternative. In this review, we comprehensively summarize current evidence from animal models and clinical studies on the application of MSCs and MSC-Exos in treating IUA and endometriosis, focusing on their therapeutic potential, mechanisms of action, and future directions. We also discuss remaining challenges and promising strategies to overcome them, thereby positioning MSC-based therapies as transformative options for endometrial restoration and disease management.