Feline mammary cancer is a type of cancer that affects the mammary glands of cats. It is one of the most common types of cancer in cats, particularly in those that have not been spayed. Mammary cancer usually begins as a small lump or nodule in one of the mammary glands and can spread to other parts of the body if left untreated. Although it is the third most common carcinoma in cats, feline mammary carcinoma (FMC) is a significantly understudied disorder. Millions of cats each year die from cancer, and early diagnosis is essential for increased survival rates. Technology, specifically ML, can be a useful tool in the efficient, accurate, and timely diagnosis of cancer. In addition, analyzing the pathways, genes, and metabolites that play a part in the disorder can greatly develop the current understanding of FMC, and assist with early diagnosis methods. The early detection and diagnosis of feline mammary cancer are crucial for a positive outcome. Recent research has focused on identifying novel biomarkers and early diagnostic tools for feline mammary cancer, including blood metabolites.