Colorado Cosmetology Written Practice Exam

What are the three stages of hair growth?

1. Anagen, catagen, telogen

2. Anagen, telogen, exogen

3. Catagen, exogen, anagen

4. Telogen, exogen, catagen

The correct answer is: Anagen, catagen, telogen

The three stages of hair growth are indeed anagen, catagen, and telogen. The anagen phase is the active growth stage, where the hair cells divide rapidly and the hair strand becomes longer. This stage typically lasts for several years, depending on factors like genetics and individual health. The catagen phase is a transitional stage that signals the end of active growth. During this period, which lasts a few weeks, the hair follicle shrinks and detaches from the dermal papilla, ultimately leading to a slowdown in hair production. The telogen phase is the resting stage that follows catagen. It usually lasts a few months, during which the hair remains in the follicle but does not grow. Eventually, the hair will shed, and the cycle begins anew as the follicle re-enters the anagen phase. Understanding these stages is crucial for both cosmetologists and clients, as it can inform hair care practices and expectations regarding hair growth and shedding.