 Photodynamic diagnostics, PDD, and photodynamic therapy, PDT, have been widely used for the detection and treatment of cancerous tumors. Recent advances in nanotechnology have enabled the development of new photosensitizing agents such as quantum dots, liposomes, and micelles, which can be used to target specific areas of the body. These agents can also be combined with other treatments such as radiotherapy, chemotherapy, immunotherapy, and surgery to improve outcomes. Furthermore, researchers have developed techniques to enhance PDT, which could lead to improved outcomes in the fight against cancer. This article was authored by Marta Olzhoho, Martina Noakperlak, and Marta Wozniak.