Women Hair Loss causes

Mistakenly, hair loss in women thought to be a strictly male disease, women actually make up forty percent of American hair loss sufferers. Hair loss in women can be absolutely devastating for the sufferer's self image and emotional well being.

Unfortunately, society has forced women to suffer in silence. It is considered far more acceptable for men to go through the same hair loss process. Even more unfortunately, the medical community also treats the issue of women's hair loss as if it were nonexistent. Since hair loss doesn't appear to be life threatening, most physicians pay little attention to women's complaints about hair loss and essentially tell their patients that "it's no big deal", and that "you'll just have to live with it."

Of course what these physicians don't seem to realize is that the psychological damage caused by hair loss and feeling unattractive can be just as devastating as any serious disease, and in fact, can take an emotional toll that directly affects physical health.

The American Hair Loss Association recognizes that hair loss is women is a serious life altering condition that can no longer be ignored by the medical community and society as a whole.

Hair loss can be temporary or long lasting. Temporary hair loss can be easy to fix when its cause is identified and dealt with, or difficult when it is not immediately clear what the cause is. Hair loss that could possibly have been temporary may become long lasting as a result of an incorrect diagnosis. The potential for such misdiagnoses is perhaps the most frustrating aspect of hair loss for women. The information in this section will help you identify the cause of your hair loss and ideally lead you and your doctors to the right treatments for your particular kind of hair loss, sooner, rather than later.

Alopecia is the medical term for excessive or abnormal hair loss. There are different kinds of alopecia. What all hair loss has in common, whether it's in men or women, is that it is always a symptom of something else that's gone wrong in your body. Your hair will remain on your head where it belongs if hormone imbalance, disease, or some other condition is not occurring. That condition may be as simple as having a gene that makes you susceptible to male or female pattern baldness or one of the forms of alopecia areata, or it may be as complex as a whole host of diseases. Fortunately, hair loss may also be a symptom of a short-term event such as stress, pregnancy, and the taking of certain medications. In these situations, hair will often (though not always) grow back when the event has passed. Substances, including hormones, medications, and diseases can cause a change in hair growth, shedding phases and in their durations. When this happens, synchronous growth and shedding occur. Once the cause is dealt with, many times hairs will go back to their random pattern of growth and shedding, and the hair loss problem stops. Unfortunately, for some women, hair loss becomes a life long struggle.

Dihydrotestosterone (DHT), a derivative of the male hormone testosterone, is the enemy of hair follicles on your head. Simply put, under certain conditions DHT wants those follicles dead. This simple action is at the root of many kinds of hair loss, so we'll address it first.

Androgenetic alopecia, commonly called male or female pattern baldness, was only partially understood until the last few decades. For many years, scientists thought that androgenetic alopecia was caused by the predominance of the male sex hormone, testosterone, which women also have in trace amounts under normal conditions. While testosterone is at the core of the balding process, DHT is thought to be the main culprit.

Testosterone converts to DHT with the aid of the enzyme Type II 5-alpha reductase, which is held in a hair follicle's oil glands. Scientists now believe that it's not the amount of circulating testosterone that's the problem but the level of DHT binding to receptors in scalp follicles. DHT shrinks hair follicles, making it impossible for healthy hair to survive.

The hormonal process of testosterone converting to DHT, which then harms hair follicles, happens in both men and women. Under normal conditions, women have a minute fraction of the level of testosterone that men have, but even a lower level can cause DHT- triggered hair loss in women. And certainly when those levels rise, DHT is even more of a problem. Those levels can rise and still be within what doctors consider "normal" on a blood test, even though they are high enough to cause a problem. The levels may not rise at all and still be a problem if you have the kind of body chemistry that is overly sensitive to even its regular levels of chemicals, including hormones.

Since hormones operate in the healthiest manner when they are in a delicate balance, the androgens, as male hormones are called, do not need to be raised to trigger a problem. Their counterpart female hormones, when lowered, give an edge to these androgens, such as DHT. Such an imbalance can also cause problems, including hair loss.

Hormones are cyclical. Testosterone levels in some men drop by 10 percent each decade after thirty. Women's hormone levels decline as menopause approaches and drop sharply during menopause and beyond. The cyclic nature of both our hair and hormones is one reason hair loss can increase in the short term even when you are experiencing a long-term slowdown of hair loss (and a long-term increase in hair growth) while on a treatment that controls hair loss.

The following are the most common causes of women’s hair loss:

Andogenetic Alopecia

The majority of women with androgenic alopecia have diffuse thinning on all areas of the scalp. Men on the other hand, rarely have diffuse thinning but instead have more distinct patterns of baldness. Some women may have a combination of two pattern types. Androgenic alopecia in women is due to the action of androgens, male hormones that are typically present in only small amounts. Androgenic alopecia can be caused by a variety of factors tied to the actions of hormones, including, ovarian cysts, the taking of high androgen index birth control pills, pregnancy, and menopause. Just like in men the hormone DHT appears to be at least partially to blame for the miniaturization of hair follicles in women suffering with female pattern baldness. Heredity plays a major factor in the disease.

Telogen Effluvium

When your body goes through something traumatic like child birth, malnutrition, a severe infection, major surgery, or extreme stress, many of the 90 percent or so of the hair in the anagen (growing) phase or catagen (resting) phase can shift all at once into the shedding (telogen) phase. About 6 weeks to three month after the stressful event is usually when the phenomenon called telogen effluvium can begin. It is possible to lose handful of hair at time when in full-blown telogen effluvium. For most who suffer with TE complete remission is probable as long as severely stressful events can be avoided. For some women however, telogen effluvium is a mysterious chronic disorder and can persist for months or even years without any true understanding of any triggering factors or stressors.

Anagen Effluvium

Anagen effluvium occurs after any insult to the hair follicle that impairs its mitotic or metabolic activity. This hair loss is commonly associated with chemotherapy. Since chemotherapy targets your body’s rapidly dividing cancer cells, your body’s other rapidly dividing cells such as hair follicles in the growing (anagen) phase, are also greatly affected. Soon after chemotherapy begins approximately 90 percent or more of the hairs can fall out while still in the anagen phase.

The characteristic finding in anagen effluvium is the tapered fracture of the hair shafts. The hair shaft narrows as a result of damage to the matrix. Eventually, the shaft fractures at the site of narrowing and causes the loss of hair.

Traction alopecia

This condition is caused by localized trauma to the hair follicles from tight hairstyles that pull at hair over time. If the condition is detected early enough, the hair will regrow. Braiding, cornrows, tight ponytails, and extensions are the most common styling causes.

Hair loss in women isn't always as straightforward as it is in most men. In men about 90 percent of all cases are caused by hereditary male pattern baldness. In women, however, hair loss can be triggered by a multitude of conditions and circumstances.

The below battery of diagnostic tests should be performed when attempting to pinpoint the hair loss trigger. These tests can at the very least eliminate the possibility of certain disorders causing your hair loss and perhaps aid in finding the actual cause. The truth of the matter is that for many patients these test usually come back with a reading of "within the normal range," but it's important to remember that the proper diagnosis of female hair loss usually starts of with the process of elimination.

Diagnostic Tests

Hormone levels (DHEAs, testosterone, androstenedione, prolactin, follicular stimulating hormone, and leutinizing hormone)

Serum iron

Serum ferritin

Total iron binding capacity (TIBC)

Thyroid stimulating hormone (T3, T4, TSH)

VDRL (a screening test for syphilis)

Complete blood count (CBC)

Scalp biopsy
A small section of scalp usually 4mm in diameter is removed and examined under a microscope to help determine the cause of hair loss.

Hair pull
The hair pull test is a simple diagnostic test in which the physician lightly pulls a small amount of hair (approx 100 simultaneously) in order to determine if there is excessive loss. Normal range is one to three hairs per pull.

Densitometry
The densitometer is a handheld magnification device which is used check for miniaturization of the hair shaft.

Source for information: American Hair Loss Association

Source for information: American Hair Loss Association