Have you ever wondered why the hair on your head can grow long while your eyebrows remain fairly uniform in length? Find answers to hair transplant FAQ’s from our experts. Each hair on the body grows from its own individual hair follicle. A follicle will produce new cells for a certain period of time depending on where it is located on your body.
Hair is produced through old cells which are packed at specific places within the skin. They are known as ‘follicles’. Attached to the follicle is a tiny bundle of muscle fibre, where the follicle and muscle fibre join. Stem cells continue to produce hair. Female hair loss treatment is an effective remedy for people suffering from hair loss problem.
Hair growth basically occurs in cycles, each comprising three main phases:
Anagen Phase – This is an active growth phase when cells in the root of the hair divide rapidly, adding about 1cm to the hair shaft every 28 days. Scalp hair follicles remain in this phase for around 2-7 years, and the exact period largely depends on an individual’s genes. Normally, up to 90% of the hair is in the Anagen Phase at any given time.
Catagen Phase – This is the end of the Anagen Phase. This transition stage lasts 2-3 weeks for scalp hair and signals the end of the hair’s active growth. 10 to 14% of the hair follicles normally remain in the Catagen Phase.
Telogen Phase – This is the resting phase which lasts for 2-3 months and is concentrated to 1-2% of scalp-hair follicles at any given time. At its end, a club hair, which is dead and fully keratinised, is produced. Fifty to 100 club hair sheds daily from normal scalp.
Chemical signals determine the exact length and nature of hair-growth cycles. Prior to the Anagen Phase, there is a period during which the follicle is formed. This is followed by an Exogen Phase, during which one of the several hair growing from a single follicle falls. The rate of hair growth depends on several factors. Genetics, diet and hormones play a major role in hair growth.
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