Skin Tags: What to Know Before Removal
Yaan Clinic · Gangnam, Seoul
Skin tags are small, soft, harmless growths of skin that hang from a thin stalk, usually on the neck, armpits, eyelids or groin. This guide explains what causes them, how doctors remove them, and when to see a board-certified dermatologist in Seoul. Yaan Clinic, an aesthetic clinic in Gangnam, does not remove skin tags.
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Skin tags (acrochordons) are small, soft, benign growths made of loose collagen fibers and blood vessels covered by skin, usually attached by a narrow stalk. At Yaan Clinic in Gangnam, Seoul, we are an aesthetic clinic, not a dermatology specialist clinic, and we do not offer skin tag removal. This page explains what you should know and where to go for removal.
Good to know: Skin tags are harmless, but any growth that bleeds, changes, grows quickly or looks different from your other tags should be checked by a board-certified dermatologist. Do not cut or tie off skin tags yourself.
What are skin tags?
Skin tags are soft, flesh-colored or slightly darker flaps of skin, typically 1–5 mm but sometimes larger. They are very common in adults, are not contagious, and do not turn into cancer.
They usually appear where skin rubs against skin or clothing. Most people have at least one by middle age, and they tend to increase in number over time.
Common sites include the sides of the neck, the armpits, under the breasts, the groin and the eyelids. A tag can become irritated, red or sore if it is twisted, caught on jewelry or rubbed by a collar, and occasionally a twisted tag turns dark as its blood supply is cut off. This is usually harmless, but if a tag changes suddenly and you are unsure why, let a doctor take a look.
What causes skin tags?
The exact cause is not fully known, but friction is a major factor. Skin tags are more common with age, weight gain, pregnancy, insulin resistance and type 2 diabetes, and they often run in families.
- Friction – necklines, collars, bra lines and skin folds.
- Hormones – tags often appear during pregnancy.
- Metabolic factors – many skin tags can be associated with insulin resistance, so a doctor may suggest checking blood sugar.
- Genetics – a family tendency is common.
How is a skin tag different from a wart or mole?
Skin tags are soft, smooth and hang from a stalk; warts are rough and caused by a virus; moles are pigmented spots made of pigment cells. A doctor can tell them apart, which matters because a changing mole needs a skin cancer check.
| Feature | Skin tag | Wart | Mole |
|---|---|---|---|
| Texture | Soft, smooth | Rough, firm | Flat or raised, smooth |
| Attachment | Narrow stalk | Broad base | Part of the skin |
| Color | Skin-colored to light brown | Skin-colored, grayish | Tan, brown or black |
| Cause | Friction, age, metabolism | HPV virus | Clusters of pigment cells |
| Contagious | No | Mildly | No |
Read more in our guides to warts and moles.
How are skin tags removed?
Doctors typically remove skin tags by snipping them with sterile scissors, freezing them (cryotherapy), or using electrocautery or laser. Removal is usually quick and done under local anesthetic if needed.
Removal is generally cosmetic, or because tags catch on jewelry or clothing. Small tags may leave no visible mark; larger ones may leave a tiny scar or temporary discoloration. New tags can still develop later. Tags on the eyelid need special care and should only be treated by an experienced doctor.
When should you see a dermatologist about a skin tag?
See a board-certified dermatologist if a growth bleeds, becomes painful, changes color, grows quickly, or if you are unsure it is a skin tag. Also see a doctor if you suddenly develop many skin tags, which can be associated with metabolic changes.
In Korea, look for a doctor described as a dermatology specialist (피부과 전문의). Many clinics use the word for dermatology in their name without one on staff, so check before booking. Bring a list of any medicines you take, particularly blood thinners, as these can affect bleeding after removal.
Do skin tags affect aesthetic treatments?
Skin tags rarely prevent aesthetic treatment, but your doctor will avoid needling, injecting or applying energy directly over them. Recently removed tags should heal fully before treatments in the same area.
- For neck treatments such as neck line filler, your doctor will plan injection points around any tags.
- Energy-based tightening such as skin tightening on the neck usually avoids tags.
- If you had tags removed elsewhere, mention the date at consultation so healing can be confirmed.
For international patients: If you plan both skin tag removal and aesthetic treatment during one trip to Seoul, book the removal with a dermatology clinic early in your stay and check healing time with that doctor. Our treatment trip planner helps you sequence appointments.
What if your concern is really neck lines or crepey skin?
Many people noticing skin tags on the neck are also concerned about neck lines or loose skin. These are aesthetic concerns Yaan Clinic does treat. See our neck lines and crepey neck guide for options.
For advice on choosing appropriate care in Korea, read our guide to choosing a safe clinic. You can learn about Yaan's medical team before you visit.
Frequently asked questions
Does Yaan Clinic remove skin tags?
No. Yaan Clinic is an aesthetic clinic, not a dermatology specialist clinic, and does not offer skin tag removal. A board-certified dermatologist or primary-care doctor can confirm the diagnosis and remove tags safely by snipping, freezing, electrocautery or laser.
Are skin tags dangerous?
Skin tags are benign and do not turn into cancer. However, some growths that look like skin tags may be something else. If a growth bleeds, changes color, grows quickly or looks different from your other tags, have it checked by a dermatologist.
Can I remove a skin tag myself?
It is not recommended. Cutting or tying off a tag at home risks bleeding, infection and scarring, and you could remove something that is not actually a skin tag. A doctor can remove it quickly and hygienically.
Will skin tags stop me from getting neck filler or tightening?
Usually not. Your doctor will plan injection or treatment points around any skin tags and avoid treating directly over them. If you had tags removed recently, wait until the skin has healed and mention it at consultation.
Why do I keep getting new skin tags?
Skin tags become more common with age, friction, weight gain, pregnancy and insulin resistance, and some people are genetically prone. Removing existing tags does not stop new ones forming. A doctor may suggest checking blood sugar if many appear suddenly.
Related pages
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About this information: Prepared from Yaan Clinic's published treatment information. Treatments at Yaan Clinic are performed by licensed physicians — meet our doctors. Last updated: October 2026. This page is general information, not a substitute for an in-person medical consultation; suitability, dosage and results are confirmed by your doctor.
