Chitosan is widely used in the medical field for wound healing due to its antimicrobial properties and ability to promote tissue regeneration. It is also employed in drug delivery systems, as it can encapsulate and release medications in a controlled manner. In agriculture, chitosan acts as a natural biopesticide and plant growth enhancer, improving crop yield and resistance to diseases. The food industry utilizes it as a preservative to extend shelf life, as a dietary fiber for health benefits, and as a viscosity enhancer or fruit coating to prevent spoilage. In the cosmetics industry, it is incorporated into skin and hair care products for its moisturizing and film-forming properties, enhancing hydration and elasticity. Additionally, chitosan is used in water treatment to remove heavy metals and impurities, making it an effective flocculating agent. Its biocompatibility and biodegradability make it a versatile material in various industries.