Theranostics is a research area focused on the development and application of diagnostic and therapeutic tools for personalized medicine. This field combines diagnostic techniques with therapeutic interventions to optimize treatment strategies for individual patients. Theranostic approaches aim to identify the most effective treatment options for specific diseases based on a patient's unique genetic, molecular, and clinical profile. By integrating diagnostics and therapeutics, theranostics has the potential to improve treatment outcomes, reduce side effects, and enhance personalized medicine strategies.