Moles: what to check yourself and when to see a dermatologist
Moles are benign pigmented formations on the skin that almost everyone has and that do not require treatment in themselves. It is worth showing them to a doctor if a mole changes in size, shape or colour, bleeds, itches or appeared in adulthood. A dermatologist helps to work out whether a mole is dangerous: they examine the skin and, if necessary, refer you to an oncologist.
Main
- You should show a mole to a doctor if its size, shape or colour changes, if it bleeds, itches, or appears in adulthood.
- A dermatoscope with magnification and lighting reveals the vascular pattern and pigment distribution that are invisible to the eye.
- A phone photograph distorts colour, size and borders, so it does not replace an examination by a dermatologist.
- Once every three months, photograph your back in daylight so you can compare the images and see the dynamics.
- Bring old photographs of the mole and notes about when and exactly what changed to the appointment.
Where to start figuring it out
Almost every adult has moles, and most of them are harmless. It is worth understanding the topic at least in order to distinguish ordinary growths from those that require a doctor's attention.
What this is actually about
A mole is a cluster of pigment cells of the skin that can appear at any age. Some growths remain flat and light, others rise above the skin and darken over time. Their appearance is influenced by heredity, solar radiation and hormonal changes in the body. A simple rule of home examination, which is worth remembering constantly, helps to notice changes. It is impossible to assess a growth from a photograph, because the image distorts the colour, size and structure of the surface. For an accurate assessment, the doctor uses a dermatoscope — a device with magnification and illumination. A calm attitude to your skin and regular attention to it help to notice in time what is changing.
What is worth knowing in advance
- Pigmented growth: a cluster of cells that produce pigment, and its appearance depends on the depth of location.
- Dermatoscope: a magnifying device with illumination that allows the doctor to see the structure invisible to the eye.
- Home examination: regular checking of the skin of the whole body helps to notice new or changed growths.
- Photograph: a picture taken on a phone distorts the colour and borders, so it does not replace an examination by a specialist.
- Ultraviolet: solar radiation remains the main external factor affecting the condition of the skin.
- Visit to a dermatologist: a routine examination is reasonable if a growth is changing or raises questions.
Who this concerns
The topic concerns any person who has pigmented growths on the skin, and such people are the majority. Those who have many moles or whose close relatives had similar growths should be especially attentive. Fair skin, a tendency to sunburn and frequent trips to the south also increase the importance of regular examination. Residents of sunny cities should remember that there is noticeably more ultraviolet here than on the plain. This makes home examination of the skin not an unnecessary precaution, but a reasonable habit. You can notice a change in the borders, colour or size yourself if you know what to look at. With any doubt, it is more reasonable to show the growth to a dermatologist than to wait until it changes more.
What should you pay attention to?
At home, it is worth assessing the shape, edge, colour and size of a mole, as well as any changes in its condition. These signs help to notice a reason to visit a doctor, but they do not replace an examination.
What is noticed first
Asymmetry of a mole is the first thing usually looked at, because it is noticeable on a simple comparison of the halves. If you mentally divide the spot in half, one half does not repeat the other in outline and area. The edge is normally even and clear, while its unevenness, blurring or "tongues" along the contour are visible to the naked eye. Colour is assessed by uniformity: several shades in one spot — from light to dark — is a reason to look more closely. Size also matters: a diameter greater than six millimetres or noticeable growth over recent months requires attention. Any change over recent months — itching, crusting, bleeding — cannot be explained by dry skin or an accidental scratch. Photograph the mole in good light and compare the images from time to time so as not to miss gradual changes. Write down when a new sign appeared — this will help the doctor at the appointment.
What is easily missed
- Comparison with neighbouring moles: assess the spot not on its own, but next to other moles on the body, because being "unlike" the others can be more important than a single sign.
- Gradual growth: changes occur over months, so without photographs or notes it is difficult to understand whether the mole has enlarged or everything has remained the same.
- Hidden areas: the scalp, back, feet and the area under the nails remain out of sight, although they should be examined with someone's help.
- Injury and scratching: a mole accidentally scraped off or constantly injured by clothing heals differently, and its condition needs to be monitored separately.
- Appearance of a new spot: a new mole on previously clear skin deserves the same attention as a change in a long-existing one.
- Calm examination: once every few months in daylight and with a mirror helps to notice changes earlier than they become obvious.
What is confused with what
| What is confused | How it actually differs |
|---|---|
| A mole and a freckle | A freckle fades in winter, a mole does not change colour |
| Growth and injury | Growth proceeds gradually, injury causes sharp pain and bleeding |
| A dry crust and healing | A crust persists for a long time, healing takes just a few days |
| An uneven edge and chafing | Chafing passes after changing clothes, the edge remains blurred |
| Itching and dry skin | Dryness affects the area around, itching is concentrated in the mole itself |
Common mistakes and misconceptions
Misconceptions about moles persist because they are reinforced by stories from acquaintances and images from the internet. Let us look at where these false ideas come from and what they lead to.
Where misconceptions come from
Most people assess moles by their appearance rather than by changes over time. A person looks in the mirror, sees a familiar bump or dark colour and considers the matter closed. A large or raised mole seems dangerous, whereas one that looks calm may be changing unnoticed. The owner simply cannot see their back or scalp, so changes there go unnoticed. Stories from acquaintances that "moles must not be touched" add confidence that there is no need to monitor them at all. Images from the internet show extreme cases and create the impression that trouble always looks the same and is recognisable. Because of this, a person goes years without comparing photographs and does not notice that a mole has changed shape or edge. It is useful to photograph your back once every three months to see the dynamics rather than rely on memory.
Misconception and how it really is
| What people think | How it really is |
|---|---|
| The largest mole is the dangerous one | Dynamics matter, not size |
| A raised mole is always bad | Change over time is what matters |
| Moles are best left alone and not examined | They need to be monitored regularly |
| If it does not itch, everything is fine | Changes can occur without any sensations |
| Examining the face and hands is enough | You cannot see your own back |
What this leads to
- Relying on size: a large mole seems to be the main threat, so small changes remain unnoticed and are spotted late.
- Assessing from memory: without photographs, a person compares a mole with a vague recollection and does not catch the gradual shift in shape or edge.
- Blind spots: the back and head fall out of the examination, and it is precisely there that changes remain unnoticed by the person themselves for a long time.
- Waiting for symptoms: itching or pain is perceived as a mandatory sign, although changes can proceed without any sensations at all.
- Refusal to monitor: the confidence that moles should not be touched means that no one tracks the dynamics.
- Practical conclusion: photograph your back once every three months to compare the images and see changes rather than rely on memory.
What to do next?
A sensible order of actions begins with an appointment with a dermatologist, not with a cosmetic clinic. A dermatoscope helps the doctor see what is indistinguishable to the eye, and the decision is based on that picture.
Where to start
It is worth starting with an appointment with a dermatologist, because it is this doctor who assesses the mole as a whole, and not just its visible surface. A dermatoscope shows the structure beneath the surface of the skin — the vascular pattern and the distribution of pigment. This cannot be seen with the eye, and even less so in a photo from a phone. That is precisely why a mole is not assessed from a sent image, even a very good one. The doctor looks at the mole magnified, compares its areas with each other and looks at neighbouring formations. If a mole catches on clothing, it can and should be removed, but first it is examined by a dermatologist, not a beautician. This order saves time and removes unnecessary steps.
Order of actions
- Examination by a dermatologist: the doctor assesses the mole as a whole and decides whether further investigation is needed, and not just cosmetic correction.
- Dermatoscopy: the device shows the vascular pattern and the distribution of pigment beneath the surface of the skin, which an ordinary glance does not provide.
- Avoiding assessment from a photo: a photo from a phone does not convey depth and structure, so a mole cannot be judged from it.
- Comparison with neighbouring formations: the dermatologist looks not at one mole, but at the whole area, in order to notice differences between areas of the skin.
- Decision on removal: if a mole catches on clothing, it is removed, but the referral is given by a dermatologist, not a beautician.
What not to do
You should not assess a mole from a photograph sent to a phone, because the image does not convey what a dermatoscope sees. In the image, the vascular pattern and the distribution of pigment beneath the surface of the skin are lost. Even a very good image does not show depth, so the structure of the formation cannot be judged from it. You should not go straight to a beautician if a mole catches on clothing: first it must be examined by a dermatologist. A beautician deals with the appearance of the skin, not with assessing what lies beneath it. You should not try to examine a mole yourself through a magnifying glass or compare it with other people's photographs from the internet. Such comparisons clarify nothing and only postpone a visit to the doctor. It is calmer and more reliable to show the mole to a dermatologist straight away and undergo dermatoscopy.
When is it time to see a doctor?
A mole that changes colour, shape or size requires a doctor's attention, not home experiments. This section helps you work out when a visit can be postponed and when you must not delay.
When you should not delay
A mole that has noticeably changed colour, shape or size over a short time requires a doctor's visit without delay. Asymmetry, an uneven or blurred edge, and the appearance of several shades within one formation are reasons not to wait. If a mole has started to bleed, itch, has become covered with a crust or has suddenly become painful, this is also a warning sign. A new formation that appears in adulthood should be shown to a specialist, even if it looks harmless. A mole that grows faster than neighbouring ones or stands out against them deserves a separate examination. If close relatives have had skin cancers, attention to any changes should be higher than usual. Do not wait for unpleasant sensations to pass on their own: a timely examination saves time and nerves.
What people come to the doctor with on this topic
- Change in colour: darkening, lightening or the appearance of several shades in one mole is a noticeable signal that should be assessed by a specialist.
- Growth of the formation: if a mole enlarges faster than the others or its borders spread, this is a reason to show it to a doctor.
- Uneven edge: blurred, jagged or indistinct borders often require examination to rule out unfavourable changes.
- Bleeding and itching: when a mole itches, weeps or bleeds without injury, a visit to the doctor should not be postponed.
- New formation: a mole that appears for the first time in adulthood deserves attention, especially if it grows quickly.
- Family history: if close relatives have had skin cancers, an examination by a doctor becomes especially important.
What to bring to the appointment
Old photographs of the mole taken in advance help the doctor assess the dynamics of changes more accurately than a single examination. Comparing images taken a year apart shows how the formation has changed, and this is valuable information for a specialist. Do not apply anything to the mole, do not pick off the crust and do not try to remove it with home remedies before the visit. Write down when you first noticed the change and what exactly alarmed you: colour, size, shape or sensations. If the mole bled or itched, note under what circumstances this happened. Take with you the results of previous examinations, if you have them, so that the doctor sees the full picture. Prepared information and images make the appointment more meaningful and help determine the next steps faster.
What is worth remembering
Moles stay with a person for life, but their appearance and behaviour can change under the influence of the sun, hormones and age. Understanding which changes are considered normal and which require a doctor's attention helps to notice a problem in time and not to worry unnecessarily.
Key takeaways
A mole is a cluster of pigment cells that forms before birth and usually does not disappear on its own. Most such formations on the skin remain benign throughout life and require no intervention. Changes in size, shape, colour or borders, as well as itching, bleeding and the appearance of a crust, should raise concern. Formations that appeared after prolonged sun exposure or appeared in an adult where there was previously no skin lesion deserve special attention. Regular skin examination helps to notice such changes at an early stage and to consult a dermatologist in time. Protection from ultraviolet radiation reduces the risk of unwanted changes, so on sunny days it is sensible to use long-sleeved clothing and a hat. If a mole causes doubt, it should not be injured on your own — an assessment should be given by a doctor.
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