Publications of Soufan et al and Kristj & aacute;nsson et al in the World Journal of Orthopedics on mesenchymal stem cell (MSC) therapy for osteoarthritis (OA) represent a significant exploration of regenerative medicine's potential in OA treatment. In their research, it is highlighted that MSCs can alleviate OA symptoms and even regenerate cartilage, potentially reversing the disease. They also compared the efficacy of three MSC subtypes, emphasizing the therapeutic advantages of adipose-derived MSCs. MSC injections, a novel and less invasive alternative to traditional treatments such as chondrocyte transplantation or arthroplasty, have a low cost, low risks, and favorable outcomes, presenting a promising approach for OA patients. Additionally, we stressed that the efficacy evaluation criteria, heterogeneity, safety, and other factors must be carefully considered to further advance the clinical translation of MSC therapy for OA.