Melinda Galloway H.P.T.
Unveiling the Growth Stages of Hair
Updated: May 11
Hair is a remarkable feature of our appearance, playing a significant role in our overall self-expression and identity. Understanding the intricate process of hair growth and the various stages it undergoes can shed light on the complexities of hair loss. In this blog, we will take an in-depth journey into the growth stages of hair and explore the common causes and types of hair loss that many individuals face.
Anagen Phase: The Growth Phase The anagen phase marks the active growth stage of hair. Approximately 85-90% of the hair on our scalp is in this phase at any given time. During anagen, the hair follicles produce new cells, pushing out older ones, resulting in continuous hair growth. This phase can last anywhere between two to seven years, depending on individual factors such as genetics and overall health.
Catagen Phase: The Transitional Phase Following the anagen phase, hair enters the catagen phase, also known as the transitional phase. This stage lasts for a short period of about two to three weeks. During catagen, the hair follicles shrink and detach from the blood supply, signaling the end of active growth. The hair stops growing and prepares for the next phase.
Telogen Phase: The Resting Phase The telogen phase is a resting period for the hair follicles and typically lasts for two to four months. Approximately 10-15% of the hair on our scalp is in this phase at any given time. While the hair follicles remain dormant, new hair starts to grow beneath them, preparing for the shedding of old hairs. It is normal to lose around 50-100 telogen hairs daily, and these are replaced by new ones as the cycle continues.
Exogen Phase: The Shedding Phase The exogen phase refers to the shedding of hair, which occurs after the resting phase. During this stage, the old hair shafts detach from the scalp, making way for new hair growth. It is crucial to note that the shedding of 50-100 hairs a day is a normal part of the hair growth cycle. However, an excessive amount of hair loss may indicate an underlying issue.
Understanding the growth stages of hair and the complexities of hair loss empowers us to address concerns related to our hair health effectively. While some hair loss is a normal part of the hair growth cycle, excessive shedding or sudden hair thinning may warrant further investigation. Seeking professional advice from a dermatologist or trichologist can help diagnose the