Blonde woman with tousled hair
June 9th, 2023

What is hair density?

On many occasions you will have heard of the term capillary density, especially in cases where there is notable hair loss. But do you know what hair density really is? What do we mean in the field of hair medicine when we talk about hair density?

In the blog de Hospital Capilar We tell you what hair density is, the differences with the term "hair volume", as well as the causes that favor the loss of hair density. We are experts in hair grafting in Madrid, Murcia and Pontevedra, in addition to having the most popular hair treatments in the sector, and we will be happy to answer any questions you may have about hair health.

What is meant by hair density?

Knowing what hair density is can help us better understand some hair problems such as alopecia that entail, precisely, the loss of capillary density. When we speak of density we refer to the amount of hair per square centimeter that a person has on their scalp. That is, those people who have a greater number of hairs will have a greater capillary density.

Once we understand what hair density is, a very common question may arise: how is hair density measured? To find out, you need to do a trichoscopic capillary analysis. This is one of the tests required to determine the viability of the hair graft, check the condition of the scalp and determine the density of the patient's hair.

Are hair density and volume the same?

A very common mistake when we ask ourselves what hair density is is to confuse it with the hair volume. Density and volume are not the same.

While hair density refers to the amount of hair on the scalp, the volume refers to the space it occupies in terms of thickness mainly. That is, we can have a lot of capillary density and little volume, and vice versa.

Factors that cause loss of hair density

One of the most frequent problems that tend to affect the self-esteem of those who suffer from it is, precisely, the loss of hair density. When our hair falls out excessively, it is said that we lose capillary density, and this can be caused by different factors.


When hair loss is not only accompanied by a lack of density, but also bald areas appear, it is very likely that we are facing a case of alopecia. Although it depends on type of alopecia Whatever it is, normally this hair loss is irreversible, so it is essential to apply the appropriate treatment in time to reverse the effects. 

Telogen effluvium

Un telogen effluvium It can also be another reason why we lose hair density. It is mostly reversible, so once the factor that causes this telogen effluvium has been resolved, the scalp works properly again, gaining density again. However, there are hair treatments tailored to improve the appearance of hair.

El covid 19th is one of the main causes of this type of hair loss, followed by Stress or a bad nutrition.

Is it possible to gain more hair density?

When there is a loss of density, what is sought is to recover it again. Depending on the medical diagnosis where the cause of hair loss is determined, we can resort to one treatment or another. I mean yes you can gain more hair density following the advice of specialist doctors that you can find in a specialized hair clinic, such as Hospital Capilar.

Use of specific hair products

One of the first options that we can resort to, as a complement to other types of treatments or in cases of non-serious hair loss, is hair loss products. In this way, we stimulate the proper functioning of the hair follicles, strengthening them and keeping them in the best conditions.

Medical hair treatments

Medical hair treatments such as Hair Redensification Treatment or Capillary Regeneration Treatment They are good allies to stop hair loss and stop losing hair density. Opting for one or the other will depend on the opinion and diagnosis of a professional.  

Doctor Francisco Pilo performing a capillary mesotherapy treatment

Stops hair loss and gains density in Hospital Capilar

En Hospital Capilar, with a hair clinic in Madrid, Murcia and Pontevedra, you will find a team of professionals with whom to achieve results that meet expectations. Request your medical diagnosis at no cost and take care of your hair in depth from expert hands!