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The telogen phase is the last stage of the hair growth cycle, also known as the resting phase. The hair growth cycle consists of three main phases: Anagen phase (growth phase), catagen phase (transition phase) and telogen phase (resting phase).
During the telogen phase, the hair is in a state of rest in which no active growth takes place. This phase usually lasts around 2 to 4 months. During this time, the hair remains anchored in the hair follicle, but it does not continue to grow. At the end of the telogen phase, the hair eventually falls out, often triggered by the growth of a new hair in the anagen phase, which pushes the old hair out of the follicle. It is normal for a person to lose 50 to 100 hairs a day, as the hair on the head is in different phases of the growth cycle.
The telogen phase can be influenced by various factors, including stress, hormonal changes, diet and medical conditions. Prolongation of the telogen phase or earlier entry into this phase can lead to hair loss, known as telogen effluvium, where more hair than normal is in the telogen phase and therefore more hair falls out.
Related terms: Anagen phase / Exogen phase / Catagen phase / Kenogen phase / Growth phases
