Medical Dermatology

Moles & Benign Skin Lumps

Most moles and skin lumps are harmless — but they are also one of the most common reasons people see a dermatologist, whether for reassurance, because something is changing, or simply to have a bothersome lesion removed. The key principle is assess first, remove second.

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At a glance

What it is: A range of common benign growths — moles, skin tags, milia, seborrhoeic keratoses, cysts and lipomas.
Who it affects: Almost everyone. Most adults have between 10 and 40 moles, and benign growths become more common with age.
Why it matters: The great majority are harmless, but assessment distinguishes them from the few lesions that need closer evaluation.
The ABCDE guide: Asymmetry, Border, Colour, Diameter, Evolving — a simple checklist for when a mole needs review.
Treatment: Assessment first — then removal by the method best suited to the lesion, with tissue examined where appropriate.

Understanding the condition

Moles and benign skin growths

The skin develops all manner of growths over a lifetime, and the overwhelming majority are completely benign. Moles are collections of pigment-producing cells; other common growths arise from the skin's surface layer, its oil or sweat glands, or fatty tissue beneath.

Two questions guide what to do with any lesion: is it harmless? and does it need removing? — whether for comfort, appearance, or because it is changing. The purpose of assessment is to answer the first question confidently before acting on the second.

Assessment before removal This is the principle that distinguishes medical removal from a purely cosmetic one. Any pigmented mole should be examined — often with a dermatoscope — before it is removed, and taken off in a way that allows the tissue to be checked under the microscope where appropriate. It is the safe way to treat something as cosmetic.

Checking a mole

The ABCDE guide

A simple checklist for deciding whether a mole warrants review. It is a prompt to seek assessment, not a diagnosis in itself.

	What to look for
A — Asymmetry	One half of the mole does not match the other
B — Border	Edges that are irregular, notched or blurred
C — Colour	More than one colour, or uneven colour
D — Diameter	Usually larger than about 6mm — but smaller lesions can still matter
E — Evolving	Any change in size, shape or colour, or new itching or bleeding

A further useful sign is the "ugly duckling" — a mole that stands out as different from your others. Of all the features, change over time is the most important.

Recognising the growth

Common benign lumps and bumps

These are all harmless, but they look different and are removed in different ways.

⚫

Moles (naevi)

Collections of pigment cells.

Flat or raised, usually brown
Most are stable and harmless
Assessed before any removal

👎

Skin tags

Soft, often stalked growths.

Common on the neck, armpits and groin
Occur where skin rubs together
Easily removed if bothersome

⚪

Milia & syringomas

Small bumps, often around the eyes.

Milia — tiny keratin cysts
Syringomas — benign sweat-gland growths
Removed carefully in this delicate area

🌲

Seborrhoeic keratoses

Warty, "stuck-on" growths.

More common with age
Brown or black, sometimes mistaken for a mole
Harmless, removed for appearance if wished

👥

Dermatosis papulosa nigra

Small dark papules, common in deeper skin.

Multiple small brown-black bumps on the face
A benign, familial variant of seborrhoeic keratosis
Removed with care to avoid marks in darker skin

🧠

Cysts & lipomas

Lumps beneath the skin surface.

Epidermoid cysts — firm, with a central punctum
Lipomas — soft, mobile fatty lumps
Removed surgically if symptomatic or enlarging

When a lump needs prompt attention Be cautious with any growth that is bleeding, changing colour or texture, ulcerating, becoming inflamed, or growing rapidly. These features warrant assessment rather than watchful waiting.

Removal

How moles and lumps are removed

Once a lesion has been assessed, the removal method is chosen to suit its type, its site and whether the tissue needs to be examined:

Shave removal — for suitable raised lesions, taking them flush with the skin
Excision with stitches — when the whole lesion, including its depth, should be removed and sent for examination; the tissue can then be checked under the microscope
Laser or electrocautery — useful for certain small, clearly benign lesions such as some seborrhoeic keratoses, skin tags and syringomas
Cryotherapy — freezing, used for selected superficial lesions

Procedures are carried out under local anaesthetic as a day procedure. Our surgical dermatology page explains what to expect from skin surgery in more detail, including wound care and healing.

Why send tissue for examination? Removing a pigmented lesion in a way that allows it to be examined under the microscope is a safeguard — it confirms the diagnosis and ensures nothing significant has been treated as merely cosmetic. This is a key difference between medical mole removal and a beauty treatment.

Seeking help

When to see a dermatologist

Arrange an assessment if:

A mole is new in adult life, or is changing in size, shape or colour
A mole has an irregular border, more than one colour, or is itching or bleeding
One mole looks different from all your others
A lump is growing, or a sore will not heal
You would like a bothersome or unsightly lesion removed
You simply want peace of mind about a spot you have noticed

If there is any suspicion about a lesion, it should be properly evaluated rather than removed as a cosmetic procedure elsewhere. Our skin cancer page covers the warning signs in more detail.

Dr Chen Qiping

Consultant Dermatologist · MBBS, MRCP (UK), M.Sc, FAMS (Dermatology)

Dr Chen practises surgical dermatology, including the assessment and removal of moles, cysts and other skin lesions, alongside general, paediatric, laser and cosmetic dermatology. Consultations are available in English and Mandarin.

Full profile →

Common questions

Moles & skin lumps — frequently asked questions

How do I know if a mole is dangerous?

Most moles are harmless. The features that warrant assessment are captured by the ABCDE guide: Asymmetry, an irregular or blurred Border, more than one Colour, a Diameter usually greater than about 6mm, and — most importantly — any Evolution or change over time in size, shape, colour or symptoms such as itching or bleeding. A mole that looks different from your others, the so-called 'ugly duckling', also deserves a look. If in doubt, it is far better to have a mole checked than to watch and wonder.

Can I have a mole removed just because I don't like how it looks?

Yes, moles and other benign lumps can be removed for cosmetic reasons or because they catch on clothing or are repeatedly irritated. The important principle is that any pigmented mole should be assessed by a doctor before removal, and where appropriate removed in a way that allows the tissue to be examined under the microscope. This ensures nothing significant is treated as merely cosmetic.

What are the small white bumps around my eyes?

These are often milia — tiny cysts of trapped keratin — or syringomas, which are benign growths of sweat glands. Both are harmless. They are common around the eyes and cheeks and are frequently removed for appearance. Because the skin around the eyes is delicate, they are best assessed and treated carefully rather than picked at.

Will removing a mole leave a scar?

Any procedure that breaks the skin leaves some mark. The aim is a scar as small and inconspicuous as possible, and the method is chosen with this in mind — a shave technique, laser, or a small excision with stitches, depending on the type of lesion, its site and whether the tissue needs to be examined. How a scar settles also depends on the area of the body and your individual healing, including any tendency to thickened or keloid scarring, which is worth mentioning beforehand.

What is the difference between a mole, a skin tag and a seborrhoeic keratosis?

A mole is a collection of pigment cells. A skin tag is a small, soft, often stalked growth, common in areas of friction such as the neck, armpits and groin. A seborrhoeic keratosis is a benign, warty, 'stuck-on' growth that becomes more common with age and can be brown or black — sometimes causing concern because of its dark colour, though it is harmless. They look different to a trained eye, and a dermatoscope helps distinguish them, which is part of why assessment before removal is useful.

When should I see a dermatologist about a mole or lump?

Arrange assessment for any mole that is new in adulthood, changing, irregular, multicoloured, itching or bleeding, or that simply looks different from your others. Also worth checking are a lump that is growing, a sore that will not heal, or any lesion you are unsure about. Removal for cosmetic reasons or comfort is also a reasonable reason to book. If a lesion is at all suspicious, it should be evaluated rather than removed cosmetically elsewhere.

References

DermNet. Melanocytic naevus, Seborrhoeic keratosis and Skin lesions. dermnetnz.org
American Academy of Dermatology. What to look for: ABCDEs of melanoma. aad.org
Cancer Council. Check for signs of skin cancer. cancer.org.au

Page last reviewed: 28 July 2026.

Important — This page is general information about a skin condition and is not medical advice. It cannot take the place of an individual consultation, examination and diagnosis. Treatment options, their suitability and their possible side effects should be discussed with a qualified doctor who has assessed your skin. Individual results vary. If you have concerns about your skin, please arrange a consultation.

Have a mole or lump you would like checked?

Arrange a consultation with Dr Chen Qiping at our Collyer Quay clinic — two minutes' walk from Raffles Place MRT. Consultations available in English and Mandarin.

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