Stages of Hair Growth

The growing stages of the hair is determined by genes. There are three stages of hair growth:

1. The anagen, or active growing stage–each hair bulb has an attached root sheath.

• On the average 90% of a person’s hair is in this stage, which lasts from 2 to 6 years.
• Hair colour is darker during the anagen stage.

2. The catagen, a brief transitional stage, when all cell division stops.

• This stage lasts only a few weeks.

3. The telogen, or resting stage, when each hair bulb has no attached root sheath.

• At this time the hair falls out.
• On the average 10-15% of hair is in the resting stage, which generally lasts 3-4 months.
• Eventually, cell division is again stimulated, producing new hair, and the growth cycle starts again.

In humans, each person’s hair follicle has its own unique growing cycle, it may be influenced by the following reasons:

• Illness and lack of necessary vitamins and minerals
• Anything that alters the physiological state of the body
• Disease and medication
• The person who is taking any medication, chemical