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Hair Loss Causes

There are many possible causes of hair loss, however, one must also keep in mind that most hair loss is normal and part of each person’s individual genetic makeup. We hope the following information will help you better understand how hair loss works and your options for treatment.

Normal Hair Loss

We all lose hair everyday. Hair grows for a period of time, usually 2 to 6 years, and then the follicles shed the hair and go into a resting phase for approximately 3 months, after which a new hair growth cycle begins. It is normal to lose between 50 to 150 hairs per day from normal shedding.

Pattern Hair Loss

Androgenetic alopecia is the scientific name for the genetic predisposition in both men and women for pattern baldness. Pattern hair loss in men is often referred to as Male Pattern Baldness (MPB). Androgenetic alopecia is the cause of over 95% of all pattern hair loss, including baldness in men and thinning hair in women.

Pattern hair loss occurs in somewhat predictable stages, and is relentlessly progressive. Usually the earlier in life pattern hair loss begins, the more advanced the pattern will ultimately become. Studies have shown that pattern loss is increasingly evident and advanced as people age.

Understanding Hair Loss - anterior and vertex male pattern baldness

In MPB, the hairs on the top of the scalp have a genetic sensitivity to the male hormone testosterone (DHT). The hairs on the sides and back of the scalp do not possess this genetic trait and therefore are not affected. 

For this reason, hairs removed from the sides and the back (Donor Hair) will maintain their genetic predisposition when transplanted and continue to grow when moved to the top of the scalp where hair loss has occurred.

Delayed Loss from Stress

Telogen effluvium is a slowing of new hair growth resulting from sudden severe stress, followed by a delayed shedding of hair. The stress induces a high proportion of follicles to enter the resting stage, and a few months after the stressful event, all of the resting follicles begin to shed hairs at about the same time.

Alopecia areata

Alopecia areata is an immune system disorder, which causes hair follicles to stop producing hairs. Sudden loss of hair from small patches on the head is a common symptom. Advanced forms of the disorder include alopecia totalis, where all hair on the head is lost, and alopecia universalis, which results in the absence of all body hair.

Hair Pulling

Traction alopecia is the loss of hair from constant pulling, often the result of tightly braided hairstyles and hair weaves.

What are the differences between hair shedding hair thinning hair loss and hair fall? Hair loss is a common issue for both men and women seeing more hair in the hairbrush or the shower floor or the drain can be very distressing we see patients every day in our practice who are anxious to understand if they are permanently losing their hair patients we see often use terms like hair shedding hair thinning hair loss and hair fall to describe their situation I’ll discuss these terms to help you understand these terms and situations where there is potential long term hair loss as well as treatment I recommend in my practice I’m Dr. Amiya Prasad I’m a Board-certified cosmetic surgeon and Fellowship-trained oculofacial plastic and reconstructive surgeon I’ve been in practice in Manhattan and Long Island for over 20 years I’ve been helping patients with genetic pattern hair loss throughout my career with surgical hair transplantation and medical therapies such as finasteride and minoxidil in 2011 I recognized a remarkable side effect of a wound healing material we used to improve our hair transplant surgical results called acellular matrix with PRP which resulted in reactivation of hair growth and thickening of thinning hair I developed protocols based on my results with different formulations and techniques and developed the Hair Regeneration system for male and female pattern hair loss I founded TrichoStem Hair Regeneration Centers to help make this treatment system geographically much more accessible patients come to our offices for trichostem hair regeneration from around the world the most common concern for people who are experiencing hair shedding is the possibility they are experiencing permanent hair loss according to the medical literature it’s normal to shed fifty to a hundred hairs a day this is usually not perceivable because of the rate of hair regrowth individual hairs continuously grow for two to six years a period called the anagen phase about 88 to 90 percent of all your hair follicles are in the anagen phase so most of your hair is growing invisible at any given time hair eventually stops growing temporarily but only eight to ten percent of hairs do this when hair stops growing it enters into a short transitional phase called catagen when the hair shaft starts to separate from the hair follicle or root this transitional phase lasts about four weeks the hair then sheds in a phase called telogen tillage and is also the resting phase where the follicle doesn’t produce hair for about three to four months after the telogen phase the hair growth cycle starts again with the antigen phase and the hair grows from the same follicle hair shedding where 200 or more hairs a day our shed is often associated with the temporary hair loss condition for example hormonal effects from oral contraceptives or hormonal changes before and after childbirth can be the basis for hair shedding generally hair which sheds remains viable with the hair follicles still intact and functional so the hair grows back a common form of hair shedding is called telogen effluvium commonly telogen effluvium is due to a stressful event that occurred two to five months prior to hair shedding events that trigger telogen effluvium are often highly stressful periods such as undergoing general anesthesia extensive surgery death and the family divorce or hospitalization there is a condition called chronic telogen effluvium which mostly affects women and is not directly associated with a singular stressful event chronic telogen effluvium is characterized by constant and significant hair shedding with some relative stability in the density and overall scalp coverage there is no direct treatment for telogen effluvium so you just allow for time to let the hair grow back hair shedding is commonly caused in both men and women who also undergo cancer treatment as the effects of chemotherapy results in stopping of the active growth phase and is referred to as antigen effluvium intervention is usually not necessary as the hair usually grows back after chemotherapy is completed we’ve had some patients report that their hair quality never came back to the way it was before undergoing chemotherapy hair thinning is defined as a progression where hair density diminishes and individual hairs after normal shedding come back thinner eventually the hair follicle disappears altogether in male pattern hair loss a contributing variable to hair thinning is the scalp sensitivity to DHT or dihydrotestosterone another aspect of male pattern hair loss is the possibility of having a genetically programmed limit to the number and longevity of hair growth cycles the drug finasteride is used to reduce DHT it allows for prolongation of the hair growth cycle however it has a limited value in the stimulation of hair growth further we’ve observed many patients who’ve been on finasteride for over 15 years who still progressively lost a significant volume of hair this doesn’t mean that the finasteride didn’t work it just means that there are other variables which cause or contribute to hair loss they continue in spite of being on the drug more than likely the same individual would have had much less hair if they weren’t on the financed female pattern hair loss is much more common than is generally acknowledged affecting 50% or more of women over 50 there can be some association with decrease in estrogen as well as genetic factors female pattern hair loss is diffuse which leads to a decrease in hair density resulting in widening of the hair part described as a Christmas tree pattern the term hair fall is commonly used in South Asian countries to mean awareness of hair loss which can be caused by hair shedding and genetic pattern hair loss as mentioned earlier I developed a treatment for male and female pattern hair loss based on observations of improved scalp coverage during hair transplant in areas not transplanted when we used PRP or platelet-rich plasma with a cellular matrix produced by the company a cell since 2011 I found ways to combine these materials and develop algorithms which I refined over the years based on the responses I saw trichostem hair regeneration is not just an injection treatment I create customized treatment plans for male and female pattern hair loss patients based on the patient’s gender age age of onset of hair loss degree of hair loss and any prior medical treatment used for hair loss although in large percentage of our patients have done well over over 5 years with only one treatment session patients who have moderate to advanced hair loss may receive an additional treatment about 18 months or so after the first treatment to maximize scalp coverage sustained hair growth and thicker hair has been seen for 3 to 5 years or even more with this treatment strategy our patients don’t need to come in for injections every month or every 3 months for the treatment to be effective we follow our patients with stead digital photography and microscope photos every three to six months for the duration of the treatment plan and yearly thereafter we have achieved visible and long-term improvement in hair thickness density and coverage in over 99% of our patients when it comes to experiencing hair loss proper diagnosis and optimal management can make a big difference for your long-term outlook we live in a time where people are being sold hair loss treatments where the practitioner or vendor makes no commitment to your long-term management if you’re experiencing hair loss and you’re considering a procedure find a doctor who will perform a thorough evaluation show you before and after photos of their patients and provide you with a rational treatment plan which you can have confidence in it I hope you found this information helpful thank you for your question

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