Unpleasant smells in textile materials pose a notable challenge to consumer satisfaction and the overall performance of textiles. This chapter examines the complex issue of odor in textiles, starting with an exploration of its background and significance. It emphasizes the importance of anti-odor textiles, underscoring their contribution to improving the usability and durability of textile products. Furthermore, the processes behind odor formation in textiles, pinpointing various sources and factors that affect the development of odors were investigated. A thorough overview of the techniques for collecting and assessing odors on textiles is presented, providing insights into current practices and innovations. Lastly, the applications of Anti-odor textiles are covered, highlighting developments and real-world applications in the sector. The goal of this chapter is to provide readers with a comprehensive grasp of the problems involved in textile smells and the cutting-edge approaches being taken to deal with these widespread problems. Finally, the benefits of odors in textile materials have been mentioned.