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Conditions · Lesions & Growths

Warts

A cutaneous wart is a human papillomavirus infection of epidermal keratinocytes. The raised, rough lesion is the visible output — not the whole of it.

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Warts — assessed at IN Eternity Clinic Singapore
In short

Warts are growths caused by human papillomavirus infecting the outer skin. They are contagious, often return because the virus can persist in nearby normal-looking skin, and many clear on their own over months to years. Treatment, chosen by site and thickness, uses freezing, acids, electrocautery or laser, usually over several sessions. See wart removal in Singapore.

Reviewed by Dr Sin Yong, Medical Director, IN Eternity Clinic · Updated
Key facts
  • What they are: skin growths caused by human papillomavirus (HPV) infecting the outer layer of skin.
  • Common types: common warts on the hands, plantar warts on the soles, and flat warts on the face and legs.
  • Key clue: tiny black dots (clotted capillaries) and interrupted skin lines. Corns and calluses keep the skin lines.
  • Why they come back: the virus can remain in nearby skin that looks normal, so treating the visible wart does not always end it.
  • Treatment options: topical acids, freezing (cryotherapy), electrocautery or laser, sometimes over several sessions.
  • Assessed by: Medical Director Dr Sin Yong at IN Eternity Clinic, 9 Scotts Road, Singapore.
Reviewed by Dr Sin Yong, Medical Director, IN Eternity Clinic · Last updated
Mechanism

What is actually happening

HPV drives keratinocyte proliferation. Destroying the visible lesion does not remove virus from surrounding skin that still looks normal, which is why recurrence is the number that matters.

The distinction

How it is told apart

Not everything rough and raised is a wart. Seborrhoeic keratoses, corns and calluses on weight-bearing skin present similarly and are managed differently.

Assessment

What is established first

Site, number, thickness, duration, prior treatment and immune status. Hand and foot lesions behave differently from one another.

Approach

What is typically done

Cryotherapy, electrocautery, laser and acids all remove the lesion. The interval between sessions materially affects recurrence, and immunotherapy is used where lesions are refractory.

When treatment waits

When it is deferred

Picking or shaving over warts spreads virus. Long-standing lesions become more resistant, and immunosuppression changes both clearance and recurrence.

Full guide: wart removal in Singapore →

Wart removal Singapore — clearance versus recurrence

Wart removal Singapore

Wart removal Singapore uses cryotherapy, electrocautery, laser or topical acids to destroy the visible lesion. Because a wart is an HPV infection of the skin rather than a growth in isolation, removing the lesion does not remove virus from surrounding skin that still looks normal — which is why the recurrence figure matters more than the clearance figure.

In practice

How a wart plan is chosen

The plan depends on where the wart is, how many there are, how thick they are and what has already been tried. Facial warts are treated with methods that limit scarring; thick plantar warts usually need paring and repeated sessions.

Guidelines note that many warts in healthy people clear by themselves over time, so leaving a wart that causes no discomfort alone is a reasonable option. Treatment is chosen when warts are painful, spreading or bothersome.

Expectations

What to expect

Most treatments take more than one session, spaced a few weeks apart. Between sessions, avoid picking, shaving over or biting warts, because that spreads the virus to new skin.

“The wart you can see is only the visible part of an infection. That is why recurrence, not removal, is the real measure.”
— Dr Sin Yong, Medical Director, IN Eternity Clinic

Frequently asked

What are warts?

A cutaneous wart is a human papillomavirus infection of epidermal keratinocytes. The raised, rough lesion is the visible output — not the whole of it.

How are warts told apart from similar conditions?

Not everything rough and raised is a wart. Seborrhoeic keratoses, corns and calluses on weight-bearing skin present similarly and are managed differently.

What is assessed before treating warts?

Site, number, thickness, duration, prior treatment and immune status. Hand and foot lesions behave differently from one another.

When is treatment deferred?

Picking or shaving over warts spreads virus. Long-standing lesions become more resistant, and immunosuppression changes both clearance and recurrence.

What does wart removal in Singapore involve, and why do warts recur?

Wart removal in Singapore uses cryotherapy, electrocautery, laser or topical acids to destroy the visible lesion. Recurrence is the number that matters more than clearance, because a wart is an HPV infection of the skin: removing the lesion does not remove virus from surrounding skin that still looks normal. The interval between sessions materially affects recurrence, and immunotherapy is considered where lesions are refractory. Hand, foot and facial lesions behave differently and are planned separately.

Are warts contagious?

Yes. They spread by direct contact and from damp surfaces such as pool decks, and to new areas of your own skin by picking or shaving.

Will a wart go away on its own?

Many do, particularly in children, but it can take months to years. Treatment is an option when a wart is painful, spreading or affecting daily life.

References

  1. Sterling JC, Gibbs S, Haque Hussain SS, et al. British Association of Dermatologists' guidelines for the management of cutaneous warts 2014. Br J Dermatol 2014;171(4):696-712. doi:10.1111/bjd.13310
  2. Kwok CS, Gibbs S, Bennett C, Holland R, Abbott R. Topical treatments for cutaneous warts. Cochrane Database Syst Rev 2012;(9):CD001781. doi:10.1002/14651858.CD001781.pub3
  3. Singapore Medical Council. Guidelines on Aesthetic Practices for Doctors (2016 edition). healthprofessionals.gov.sg/smc

These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.

Have this assessed properly

Every assessment at IN Eternity Clinic is carried out personally by Medical Director Dr Sin Yong at 9 Scotts Road, #12-01 Pacific Plaza. If the honest answer is that treatment should wait, you will be told that.

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