Trichoscopy — what the camera sees that the mirror doesn't

What trichoscopy actually is

Trichoscopy is a non-invasive examination — no needles, no tissue samples. A dermatoscope or specialist camera is placed against the scalp. It magnifies the image many times over and displays it on a screen. The same device (in various configurations) is used by dermatologists to assess skin lesions. In trichoscopy mode, though, the focus is on the hair follicles, the scalp epidermis and the hair shaft right at the point where it emerges.

Magnification is the key. What looks like "scalp" to the naked eye turns out, under the camera, to be a complex micro-world: follicle openings, a network of blood vessels, keratin scales, and any deposits or inflammation. A specialist views this image in real time, compares different areas of the scalp, and draws conclusions that neither observation alone nor blood tests could reveal.

What a specialist sees — layer by layer

Under a trichoscopy camera, the scalp looks completely different from what you see in the mirror. A specialist reviews several layers of information at once — each one tells a different story.

• Follicle openings. Every follicle has an opening — and in healthy scalp, two or three hairs usually grow from a single opening (known as a follicular unit). The camera shows whether this is really the case: is the opening empty, regrowing with a single thin hair, or blocked by a deposit? This is one of the most important indicators of follicle health.
• Hair shaft thickness at the opening. Hairs in an active growth phase are thicker; those that are "dying" and about to fall out are often noticeably thinner — visible right where they emerge from the skin. Trichoscopy allows a specialist to assess the ratio of thick to thin hairs in a given area, which is one of the key indicators of whether thinning is progressing or reversing.
• Scalp condition — epidermis and scales. Dandruff, psoriasis, seborrhoeic dermatitis — each of these conditions looks different under magnification. It also reveals hydration or dryness of the epidermis, the condition of the skin barrier, and any inflammation around the follicle openings.
• Blood vessels. In healthy scalp, a regular network of fine blood vessels is visible. Changes in this network — widened, tortuous or deformed vessels, or areas with disrupted microcirculation — can point to various underlying issues and form an important part of a trichoscopic assessment.
• Hair distribution pattern. Trichoscopy shows whether thinning is even, concentrated in specific zones, or follows a characteristic pattern — often the key to reaching the right diagnosis (for example, male pattern baldness vs telogen effluvium vs alopecia areata).

Why the same hair loss can have completely different causes

This is where trichoscopy differs from simply "looking at your hair". From the perspective of someone looking in the mirror, hair loss just looks like hair loss. But under the camera, two cases of the same "hair loss" can look radically different — and call for completely different approaches.

This is a simplification — there are far more types and subtypes, and they often overlap. But it shows why treating "hair" without trichoscopy is a bit like treating a headache without asking where it's coming from. Remedies that help with one type of hair loss can be completely useless — or simply insufficient — for another. That's why an accurate diagnosis saves time, money and frustration.

When it's worth having a trichoscopy

This examination is useful in far more situations than just when hair is "falling out in clumps". Many people discover trichoscopy too late — only once the problem is already clearly visible. Yet far more can be achieved when changes are caught at an early stage.

1. 01

   The first warning signs

   More hair than usual on your brush or in the shower drain, a more visible parting, a feeling that your hairstyle has lost volume. This is the moment not to wait.

2. 02

   Scalp problems

   Oiliness, dandruff, itching, burning, flaking — trichoscopy allows a quick assessment of exactly what type of changes you're dealing with, and whether dermatological intervention is needed.

3. 03

   Assessing treatment progress

   If you're already using hair products or treatments, a trichoscopy after a few months shows objectively whether your follicles are responding — without waiting for results visible to the naked eye.

4. 04

   A baseline before therapy

   Before starting intensive hair care or therapy, it's worth having an initial examination as a reference point — so that a few months later, you can compare images and genuinely assess progress.

What happens after the examination — the image and the plan

A trichoscopy result isn't just a set of images — it's the starting point for a conversation. A good specialist doesn't just describe what's visible under the camera. They explain what this image means for you specifically, and what follows from it in practice: which methods make sense, which don't, given this particular image, and in what order to proceed.

That last point — matching methods to the image — is a value no generic protocol can replace. Scalp mesotherapy, platelet-rich plasma, biostimulating laser, cleansing treatments — each of these works differently and is indicated in different situations. Without trichoscopy, the choice is largely random, or based purely on what advertising says. With trichoscopy, it's based on the actual image of a specific person's follicles.

Trichoscopy versus other tests — what it checks, and what it can't replace

Trichoscopy is a powerful tool — but it's a tool for local assessment: the scalp and follicles. Many causes of hair loss are systemic — hormonal, nutritional, immunological — and trichoscopy can only suggest these, not confirm them. That's why sensible hair diagnostics often combines both levels.

The gold standard in diagnosing hair loss is combining both levels — trichoscopy as a local map, and blood tests as the systemic background. Together, they give the full picture: what's visible beneath the skin, and what might be causing it from within. After a trichoscopy, a good specialist will tell you which laboratory tests make sense in your case — and which results to look for.

What to combine with trichoscopy — treatments that respond to what it shows

Trichoscopy is a starting point, not an endpoint. After the examination, a map of possible actions opens up — and that's where real therapy begins. Below are a few methods that most often come into play after a trichoscopic assessment — each works differently and addresses a different kind of need.