The Leeds Trichologist Clinic
https://www.trichological.co.uk/
Human hair of every ethnicity undergoes a repetitive sequence of growth, transition and resting, this is called the hair growth cycle.
The three main stages are named:
• Anagen, this stage can last anything from 3-7 years and 85-90% of hairs are in the anagen stage.
• Catagen, in this stage the bulb remodels into a club shape, which takes 10 days on average and 1% of scalp hairs are in the catagen stage.
• Telogen, as this stage of the cycle progresses the hair is released, and the follicle goes into the resting phase before a new Anagen bulb is produced, 4-15% of scalp hairs are in this stage.
There are approximately 100,000 hairs on a human scalp, with each cycle lasting on average 1000 days on average each human loses between 80-100 scalp hairs each day.
This is completely normal.
If you shampoo your hair every three days many of the hairs you have lost naturally will be retained in your hair by static electricity and friction, until hair conditioner is applied and the friction and static are greatly reduced, the result will be that up to 300 scalp hairs will be found in the basin. If you shampoo daily, then up to 100 hairs will be normally found in the basin.
Things that can influence the hair growth cycle.
• Testosterone is the primary circulating androgen, but when it metabolizes into dihydrotestosterone by the enzyme 5α reductase. This has a more potent effect upon the hair follicle, although the process is not fully understood, the androgenetic effect leads to follicle miniaturization.
• Iron deficiency.
• Severe emotional stress.
• Post-operative trauma.
• Malnutrition.
• Hemorrhage.
• Thyroid disorders.
• Pregnancy, Oral contraceptive medication.
• Certain medications.
• Industrial or accidental exposure to chemicals.
Also, a salient point to remember, is that everyone has their own growth cycle, the length of hair achieved by the end of the Anagen stage. Some people can only grow hair to their shoulders, whereas others can achieve a hair length down beyond their waist.
Seasonal changes
Hair loss is shown to reach its peak around August-September.
REF:
Sinclair R. and, Jolliffe V. (2013) Fast facts: Disorders of the Hair and Scalp 2nd edn. Oxford. Health Press Limited.
Call: 07904353108
Clinic:
Iveridge Hall, Wakefield Rd, Oulton, Leeds, LS26 8EU.