Recent fast developments in nanotechnology have stoked a developing interest in the study of nanoparticles, particularly when it comes to medical applications. Understanding the properties of gold nanoparticles (AuNPs) and doing extensive study has resulted to a growing body of information that is pushing the limits of nanotechnology in interesting directions all the time. The use of AuNPs to manage cancer, including its diagnosis, monitoring, and therapy, appears to be of increased attention at the moment. The goal of these initiatives is to fundamentally alter the way that cancer is currently treated. In this article, we will primarily focus on how AuNPs are currently being used to treat cancer.