Hair thinning refers to a gradual decrease in hair volume and thickness, often leading to a less dense appearance of the hair. It can affect both men and women and is commonly associated with factors such as aging, genetics, hormonal changes, nutritional deficiencies, and certain medical conditions. Hair thinning can occur diffusely all over the scalp or in specific areas. It is important to identify and address the underlying causes of hair thinning, as early intervention can help prevent further hair loss and promote healthier hair growth.