Dr. Maneesh Sonthalia (Plastic & Cosmetic Surgeon) (MBBS) (M.S) (M.Ch)

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Normal Hair Cycle

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Hair growth, just like all the other functions of the human body, it also has a normal cycle. If something unnatural occurs such as any disease or perhaps a sudden event that interrupts the cycle, it definitely affects the hair growth.

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Hair Growth Cycle

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Hair loss and re-growth can be divided into three phases:-

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  • The growing cycle
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  • The resting cycle
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  • The shedding cycle
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Every phase has a specific duration in the cycle. Every cycle is different because every follicle operates individually in comparison to the other follicles. Remember, it’s the hormones which control and maintain the normal hair growth cycle. Therefore, they are responsible for the hair growth.

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Although every cycle is different but there are certain similarities which you can find in all the cycles.

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Hair Growth Stages

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The First Phase

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Hair CycleTo put it simply, it’s a new phase where hair grows. Furthermore, it also helps in the lengthening of the new hair. It’s also known as the anagen phase. In this phase, hair is born at the root. When it comes to the maintenance of the new hair, it is mainly done through the blood vessels, which helps in the nourishment of hair. It’s a phase which lasts around two to eight years. And, the end result is healthy hair.

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The Second Phase

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In the resting phase, hair strands are maintained properly. During this phase, the hair follicles receive a lot of nourishment. It’s also the time of preparation for hair strand shedding. Hair follicles usually last for an average of 60-180 days after which the follicles get degraded. Once this happens, it’s time for the growth of new hair.

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The Third Phase

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It’s the shortest phase. In this phase, old hair strands are released because of the growth of new hair. After the completion of this phase, the same cycle starts i.e. the hair follicles again enters the growth phase. In this phase, it’s around fifty to hundred hair strands which fall during this phase. This phase is associated with baldness.

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