Catagen Phase

Catagen Phase

Overview

• The catagen phase is a brief transition phase between the growth phase and the resting phase, marking the end of active hair growth.

Duration

• Typically lasts between 2 and 3 weeks on the scalp.

Key Changes

1. Cell Division

   • Stops during this phase.

2. Follicle Changes

   • The follicle tube shrinks and detaches from the dermal papilla.

   • The base of the follicle moves upward toward the skin surface.

3. Melanin Production

   • Halts, resulting in a non-pigmented lower end of the hair that remains under the scalp until shedding.