how much hair loss is normal in the shower

how much hair loss is normal in the shower


How much hair loss is normal in the shower,
every day, we find "dead" hair in our combs, brushes or sinks without alarm. But what is the average amount of this hair loss, what does it depend on and how do we know at what threshold it can be considered "pathological"? Here is an update on these questions that sometimes bother some of you (see commentary here).

In general, hair loss is normal because hair is constantly being renewed: hair grows, lives, dies, falls out and is replaced by young hair.
In fact, hair has a lifespan that is not eternal: from 3 to 7 years (we sometimes read between 4 and 6).

What is called "death of the hair" corresponds to the cessation of its growth (the catagen phase which lasts from 1 to 2 weeks), i.e. its bulb no longer produces a hair shaft (keratin).
At the end of this phase, the dead hair enters a final stage (the telogen phase) where it remains attached to the scalp for another 3 months or so before falling out. The stem cells present in the upper part of the epithelial sheath will migrate to the bottom of the bulb to restart the production of new hair (return to the 1st phase: anagen).
Each hair follicle can produce about 20 to 25 hair shafts in a lifetime.

A healthy head of hair has 10 to 15% telogen hair (hair ready to fall out).

According to professionals, it is difficult to quantify a normal hair loss from a pathological one because it depends on various variables (natural density, skull morphology, length of the capillary cycle...): thus, some people lose 20 to 25 hairs per day while others can lose up to 70, 80 or even 100 hairs in a normal way.
These hairs at the end of their life are topped by a small white spot (their hair bulb).

However, some dermatologists consider that if hair loss exceeds 50 to 100 hairs per day, it may be related to pathological hair loss.
The same is true for moderate hair loss, below the limit of 50-100 hairs per day, but modifying the volume of the hair or the implantation of the hair (the scalp becomes thinner or visible in places).

Researchers have developed a new method to allow a man to predict whether or not he will suffer from baldness later on. Called "60-second-hair count," this method, presented in the journal Archives of Dermatology, uses a simple comb to determine how long hair loss remains "normal.

One study (on the risks of male pattern baldness) determined that according to the so-called 60-second test performed three times (consisting of combing, before shampooing, one's hair from the back to the front of the scalp for 60 seconds, over a pillow or towel of a different color, and then counting the number of hairs found on the tissue), losing an average of 10 hairs per day is "normal", and over 50 hairs lost in each "60-second" session, one is advised to consult one's doctor.

Generally speaking, a proportion of telogen hair (compared to anagen hair) greater than 15% is considered pathological (with the exception of seasonal fall/spring* and post-delivery hair loss).

Pathological hair loss is caused by an imbalance in the vital functions of the hair (defect in the production of the hair follicle, trauma, etc.) and requires a specific method of care, after diagnosis (preferably by a dermatologist specializing in the scalp).
Traction alopecia (linked to too tight braided hair ties for example: see article: "These hairstyles responsible for hair loss") or straightening are quite frequent causes of pathological hair loss which disrupts the hair follicle or even renders it permanently "out of order".

The medical examinations to be carried out in case of pathological hair loss:

Among the examinations carried out, the doctor may carry out a traction test, a dermoscopy, a Trichogramma (microscope observation of a few hairs in different areas of the scalp in order to measure the calibre of the hair shafts and the ratio between hair in the growth phase and dead hair) or a phototrichogram (after shaving, photographic monitoring of regrowth on the scalp in order to estimate the density of hair in the growth phase and the proportion of "normal" hair and hair resembling down). Finally, he may request a blood test determined by clinical signs.
Note that the treatment will depend on the cause of the hair loss, which must be correctly identified beforehand.


how much hair loss is normal in the shower how much hair loss is normal in the shower Reviewed by Megan Stone on March 13, 2020 Rating: 5

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