What Are Skin Tags and Why They Appear

What causes skin tags, and what they actually are

A skin tag is a small, soft, harmless growth of skin that hangs off the surface, usually on a thin stalk. They feel like a tiny piece of folded skin under your fingertip. Most are between two and five millimetres across, though some grow larger over time. They are not contagious. They are not dangerous. They are not a sign of anything sinister. What causes skin tags in the first place is mostly a combination of friction, age, hormones and skin type, not anything you did or failed to do.

I see them on perfectly healthy people every week. They are one of the most common skin features I work with, and almost everyone who comes in to have one removed asks the same first question – why is this here? So let me answer it properly.

Why skin tags appear: the four real triggers

What causes skin tags comes down to four overlapping factors. Friction is the most common. Wherever skin rubs against skin or against fabric every day, under the arms, on the neckline where a chain or bra strap sits, under the breast, on the inner thighs, around the waistband, the surface gets minutely irritated thousands of times. Over years, the body sometimes responds by growing a small fold of soft tissue that, in some skin types, becomes a stalked tag.

Age is the second factor. Most people develop their first skin tag in their thirties or forties, and they tend to multiply with the decades. Hormonal change is the third – pregnancy, menopause, and significant weight change all shift the conditions that make tags more likely to form. The fourth is genetics. If a parent has many tags, you are more likely to develop them too. None of these on their own predicts skin tags reliably. What causes skin tags in any individual is usually two or three of these factors combining over time.

Where skin tags show up most often, and why those places

The places where skin tags appear most often are the places that get the most daily friction. The neck, especially under jewellery, is the most common. The underarms come next. The eyelids, although tags here are usually small and soft. Under the breast where a bra strap sits all day. The groin folds. Sometimes the inner thighs. There is a clear pattern: clothes, jewellery, body folds. Wherever the skin meets repeated rub, the conditions are right for what causes skin tags to set in over time.

This is why I see so many tags clustered around bra straps, watch straps, gold chains. A member of my own family had multiple tags around the neck and could not wear a chain comfortably for years – it kept catching, sometimes drawing blood. Once they were removed, that whole problem disappeared. Years later he is still grateful, still wearing his chain. Skin tags are rarely a serious concern; they are very often a daily-friction one.

Skin tags, red veins, angiomas: not the same thing

Many clients use ‘skin tag’ as a catch-all for any small skin feature, and it is worth telling them apart, because they need different approaches.

Skin tags are soft, flesh-coloured, hang on a small stalk. Red veins (also called thread veins or telangiectasias) are flat, fine red lines visible in the skin, most often around the nostrils, on the cheeks, or on the legs. Angiomas (sometimes called cherry angiomas) are small, smooth, bright red dots, usually on the chest, back or arms. They feel domed rather than stalked. All three respond to advanced electrolysis when removal is the right call, but the technique and the number of sessions vary. Knowing which one you have changes the conversation we have together.

What I will not remove

I do not remove warts of any kind. Viral warts and verrucas are HPV territory, and they belong with your GP or pharmacy, not with me. They look different to skin tags, but if you are not sure, see a GP first. The same applies to anything that has changed in colour, shape, size or texture – that is a mole conversation, not a skin-tag conversation, and it always needs a GP eye on it before anyone touches it cosmetically.

I would rather lose the booking than remove something that should have been seen by a doctor first. That is non-negotiable for me.

When you can come straight to me, when to see a GP first

If a feature has been there for a long time, has not changed, is the same colour as your surrounding skin (or for an angioma, a steady bright red), and behaves the way I have described above, you can book a consultation directly. We will look at it together, agree on whether removal makes sense, and either book the session or not.

If a feature is new, growing, changing colour, irregular at the edges, bleeding without an obvious friction reason, or itching without explanation, please see your GP before you see me. I am a beauty therapist, not a doctor. Anything that needs medical eyes gets medical eyes first. That is how we both stay safe.

How to start

If you have what you suspect is a skin tag, or something else that fits the pattern of what causes skin tags I have described above, the most useful first step is a short consultation. Twenty minutes, in person, no obligation. We look at the feature together under good light, and I tell you honestly whether removal is straightforward, whether it should wait, or whether you should see a GP first.

If you also want a wider conversation about your skin while you are in – barrier health, daily routine, anything else that has been bothering you – a Skin Analysis at £30 gives us an hour to work through everything properly. Otherwise Advanced Electrolysis is the route for skin-tag work specifically. Either way, the first step is just a conversation, not a procedure.