What happens during a skin check

A skin check is a systematic look over the skin, usually in a set order, using good light and a handheld magnifier. It is quicker and less ceremonial than most people expect, and the clinician looks at areas you did not come in about because pattern across the whole skin is part of the information.

This page describes how skin examinations are generally conducted in the United Kingdom. Arrangements differ from one country to another.

Being examined by a stranger under bright light is nobody’s favourite twenty minutes, and most of the discomfort comes from not knowing the shape of the examination in advance. The examination itself is brisk, methodical and considerably less ceremonial than the anticipation suggests.

What does the clinician do first?

Talking comes before looking. The consultation opens with history: what changed, when, what has been done, what else is going on medically. That conversation is not a preamble to the real examination, it is half of the diagnostic work, and the answers shape where the clinician’s attention goes during the examination that follows.

Only then does the examination begin, usually with the area that brought you in. Expect the clinician to explain what they are about to do and roughly how far the examination extends. If they do not, asking is entirely reasonable, and the answer takes a moment.

How much do you undress?

That depends on the extent of the examination. A single patch on an arm involves rolling up a sleeve. A full skin examination means undressing to underwear, and it is usually done in stages, with a gown, so that only the area being examined at that moment is uncovered.

Rooms should have somewhere private to change, and you are entitled to a chaperone. Both of those are ordinary arrangements rather than special requests, and clinics that see skin all day are used to organising them without any fuss. You can also decline to have a particular area examined, though it is worth hearing the reason before you do, since the answer is sometimes that the area is exactly where the information is.

Why look at skin you did not ask about?

The instinct is to point at the patch and expect the appointment to be about that patch. Skin does not really work that way, and dermatology reads the whole surface as one thing.

Distribution is one reason. Where something appears on the body, and whether it is symmetrical, narrows the field considerably, and the only way to establish that is to look at the areas where it has not appeared as well as the areas where it has. Comparison is another. Judging whether one spot is unusual requires seeing what your other spots look like, and normal varies enormously from person to person. A clinician who has seen the rest of your skin knows what your baseline is.

Then there is the simple fact that people bring in the thing that bothers them, which is not always the thing worth attention. Something on the back, or behind an ear, or on the sole of a foot, is out of your line of sight and has never been inspected by anyone.

What is the magnifier for?

The handheld instrument pressed lightly against the skin is a dermatoscope. It combines magnification with a controlled light source, and often a fluid or gel between the lens and the surface, which reduces reflection and lets the clinician see into the skin rather than off it.

What it shows is structure: patterns of pigment and small vessels arranged below the surface, which are invisible to the naked eye and quite different from what a spot looks like from a foot away. Nothing is removed, nothing is injected and it does not hurt beyond light pressure. Some clinicians photograph through it, and the images become part of your record and a reference point for comparison later.

Seeing the clinician spend a long moment on one area is not, by itself, a signal. Careful looking is what the instrument is for, and rushing it would be the thing worth worrying about.

What if something needs a closer look?

Occasionally an examination raises a question that the examination itself cannot settle, and the clinician will say that a sample or a test is needed. Hearing that in the room is unsettling, and it is worth knowing that it is a routine step rather than a verdict: tests exist precisely because appearance has limits, and the sensible response to uncertainty is to resolve it.

Ask what the test involves, when it happens, and how the result reaches you. Those three questions cover almost everything people later wish they had asked, and they can all be answered in under a minute.

How does it end?

Faster than expected, usually. A skin examination is efficient once it starts, and the sense that something so quick cannot have been thorough is very common and generally mistaken; speed in an experienced examination is a function of practice rather than inattention.

Before you dress, take the opportunity to ask about anything you noticed while lying there. Questions become much harder to raise once you are back in your coat and the appointment has visibly moved on. This is also the moment to ask for names and spellings of anything mentioned, while it is still fresh for both of you.

Afterwards, write down what was said, including any areas the clinician commented on in passing. Those remarks are easy to lose and they are often the ones that turn out to matter at the next appointment, which may be a long time away.

Last updated 2026-08-03. How this page was written.