A vital component of all-encompassing cancer care is the interaction between general care and oncology. Primary healthcare is critical across the cancer care continuum, from prevention and early detection to diagnosis, treatment, survivorship, and palliative care. A multidisciplinary strategy that combines cancer and primary care services to deliver comprehensive, patient-centered care is the foundation of this partnership. A seamless continuum of care that covers the whole range of cancer care demands is stressed in the link between oncology and primary healthcare. In order to guarantee that patients receive prompt, efficient, and patient-centered treatment throughout their cancer journey, primary care physicians and oncologists should collaborate.