Causes for Hair loss
It’s truth that we normally loose approx 120-125 hairs on any given day. At the end of growth cycle hair that is shed falls out. 10% of our hair is in phase called “resting phase” at any given time and after period of 2-3 months resting, those hair falls out and replaced by new hairs. Amount of hair loss differs in person to person.
Hair loss increases as we get older. This is true for both men and women. It’s part of our aging process. 95% of our hair loss accounts due to Androgenetic Alopecia. It’s referred as Male Pattern Baldness in men.
In men it’s characterized by a receding hair line and baldness on top of head while in women on other hand hair loss is spread out evenly over entire scalp. Though hair loss is severe in women they generally don’t go entirely bald.
When talking about Androgenetic Alopecia, hormones play a vital role.With aid of the enzyme 5-alpha-reductase testosterone is converted into dihydrotestosterone (DHT) in both men and women.DHT is responsible for shrinksing hair follicles and making the membranes in the scalp to thicken, this way it makes scalpe inelastic and reduces blood flow. This results into hair follicles to atrophy. This is reason of fallen hair not getting replaced.
It’s obvious that men produce more testosterone than women and that’s why experience more hair loss.
Androgenetic Alopecia is not the only reason for hair loss. Medical condition like hypothyroidism, ringworm and fungal infections can cause hair loss. Crash diet, sudden hormonal changes, chemotherapy and radition plus certain medications such as hypothyroidism, ringworm and fungal infections can cause hair loss.
Other causes for hair loss can be emotional stress, pregnancy or surgery but usually not notices until 3-4 months after stressful even taken place. Stress triggers larger number of hair follicles to enter into the resting phase and this way slowing down new hair growth.
Mechanical stressors on hair and scalp is also responsible for hair loss. Wearing pigtails, cornrows or tight rollers that end up pulling on the hair can scar the scalp and cause permanent hair loss.
Hot oil treatments and chemicals used for permanents can results inflammation to the hair follicles and that also results in scarring and loss of hair.
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