Nearly 90% of specialized cancer hospitals in Japan report a critical lack of oncologists to supervise medication treatments. This medical staff shortage hinders treatment of countless patients, risking delays and complications in cancer therapy. The issue has sparked debates on the urgent need for resource allocation and staffing solutions in Japan's healthcare sector.

Japan’s aging population and associated increase in cancer rates have underscored the importance of staffing in oncology departments. Yet, the specialization of oncology isn't very popular among medical students due to challenging work conditions and relatively low payment compared to other specialties. This issue ties into larger healthcare system problems about work-life balance, salary, and staffing.

Similar issues of healthcare staffing shortages are seen worldwide, including in the U.S and E.U. However, such regions typically have more established oncological curricula in medical education and more extensive efforts for staff recruitment and retention, putting Japan at a comparative disadvantage.