Cyclic Hair Growth describes the natural cycle of hair development, consisting of three distinct phases: anagen, catagen, and telogen. Each phase plays a crucial role in the life span of a hair follicle and determines the rate and density of hair growth.
The anagen phase is the active growth stage, during which hair follicles produce new hair. This phase can last anywhere from 2 to 7 years, depending on genetics and overall health. The catagen phase follows, acting as a transitional stage where hair growth slows, and the follicle prepares to enter the resting phase.
The telogen phase is the resting stage, during which hair naturally sheds and new growth begins. Approximately 10-15% of hair follicles are in the telogen phase at any given time, contributing to the normal shedding of 50-100 hairs per day.
Understanding cyclic hair growth is essential for effective hair restoration and treatment planning. Therapies targeting specific phases, such as stimulating anagen activity, can enhance hair density and improve overall scalp health.