Quantum physics and quantum medicine are two sciences foreign to conventional medicine in recognizing and treating diseases. This study examined the possible underpinnings of how diseases are caused, understood, and treated by utilizing quantum physics and quantum medicine at the atomic, cellular, and molecular stages. These three stages are the organizing principle of quantum medicine and quantum physics, current knowledge of quantum subatomic particles (particles that make up atoms), their application in medical technology and clinical therapy, and the alterations in the quantum subatomic particles are the fundamental causes of disease. This concept needs to be better understood by conventional medicine to explain the phenomena of causes and treatment of diseases.