Why Are You Getting Skin Tags All Of A Sudden?

You look in the mirror and there it is — a small, soft flap of skin on your neck, armpit, or eyelid that was not there last month. Skin tags are common, benign growths that affect a large share of adults at some point in life. They are not a sign of something dangerous on their own, and they do not turn into cancer. But when several appear close together in a short time, it is reasonable to ask what changed.

What Exactly Is a Skin Tag?

A skin tag is a small, soft piece of skin that hangs off the surface, usually on a thin stalk. Doctors call it an acrochordon. Most are the same color as your skin or slightly darker, and they range from the size of a pinhead to a few millimeters across. Some grow larger, but that is less common.

Skin tags are made of normal skin tissue — loose collagen fibers, blood vessels, and a covering of epidermis. That structure matters. It explains why they feel soft rather than firm, and why they can move freely on their stalk. A firm, hard, or fixed growth is a different situation and should be checked by a doctor.

They show up most often in skin folds where skin rubs against skin:

• Neck
• Armpits
• Groin and inner thighs
• Under the breasts
• Eyelids

Friction in these areas is one of the most accepted explanations for why tags form there and not on your forearm or shin.

Why Are You Getting Skin Tags All Of A Sudden?

Skin tags usually develop slowly over years, so a sudden crop of new ones often points to a recent change in your body or your skin’s environment. The most common triggers are weight gain, hormonal shifts, and increased friction in skin folds. Sometimes the cause is simply age and genetics catching up at once.

Friction is the leading mechanical explanation. When skin rubs against skin repeatedly, the top layers can respond by forming these small outgrowths. If you gained weight recently, started wearing tighter collars or waistbands, or began a new exercise routine that creates chafing, that friction can encourage tags to appear.

Hormonal changes are another real factor. Pregnancy is a well-recognized time for skin tags to appear or multiply, likely because of shifts in estrogen, progesterone, and growth factors, along with weight gain and skin stretching. Puberty and menopause are also periods when hormonal signaling changes, and some people notice new tags during those transitions.

Insulin resistance is worth understanding here. People with type 2 diabetes and obesity tend to have more skin tags than the general population. The relationship is not fully explained, but one widely discussed mechanism involves higher insulin levels stimulating the growth of skin cells. This does not mean a skin tag causes diabetes or that everyone with tags has a blood sugar problem. It does mean that a sudden increase in tags, especially alongside other changes, is a reasonable reason to have your metabolic health checked.

A non-obvious point: skin tags are not caused by poor hygiene. They are not infectious, and you cannot catch them from someone else or spread them by touching. If you have heard otherwise, that is a myth.

Are Skin Tags a Sign of Diabetes or Something Serious?

Skin tags themselves are benign and are not a sign of cancer. They do not become malignant, and removing them is not medically required for cancer prevention. That part is well established.

The connection to metabolic health is more nuanced. Research has found an association between skin tags and insulin resistance, type 2 diabetes, and obesity. Association is not the same as cause. Having skin tags does not mean you have diabetes, and most people with skin tags do not. But the link appears often enough that some clinicians consider numerous skin tags a reason to check fasting glucose or A1c.

If you have a sudden increase in tags along with any of the following, it is worth a medical visit:

• Increased thirst or frequent urination
• Unexplained weight loss or gain
• Fatigue that does not improve with rest
• Dark, velvety patches of skin in folds (a condition called acanthosis nigricans)

Acanthosis nigricans is a separate skin change, not a skin tag, but it can appear alongside them and is more strongly tied to insulin resistance. If you notice it, mention it to your doctor.

One more clarification: a growth that bleeds, changes color, grows quickly, or feels firm is not a typical skin tag. Those features warrant a professional evaluation rather than a wait-and-see approach.

Do Hormones and Pregnancy Cause Skin Tags?

Pregnancy is one of the clearest situations where skin tags appear or multiply. This is widely reported in clinical practice, and the hormonal shifts of pregnancy are the leading explanation. Estrogen, progesterone, and other growth signals rise substantially, and skin across the body changes — including increased pigmentation and new growths.

Weight gain and skin stretching during pregnancy add mechanical friction on top of the hormonal changes. After delivery, some tags may shrink or stay the same. Many do not go away on their own.

Outside pregnancy, hormonal transitions such as puberty and menopause can coincide with new tags. The evidence here is less direct than for pregnancy, but the pattern is commonly observed. If you are pregnant or breastfeeding and considering removal, talk to your doctor first. No clinical guidelines currently exist for treating skin tags during pregnancy or breastfeeding, so the safe default is to wait unless a clinician advises otherwise.

Can You Prevent Skin Tags From Forming?

There is no proven way to prevent skin tags entirely. Because genetics and hormones play a role, some people are simply more prone to them regardless of what they do. That said, reducing friction and managing metabolic health are reasonable steps, even if the evidence for prevention specifically is limited.

What may help:

• Keep skin folds clean and dry
• Wear loose clothing that does not rub
• Maintain a weight that is healthy for you
• Manage blood sugar if you have been told it is elevated

What does not help: scrubbing, picking, or trying to tie off a tag with string or dental floss at home. Those methods risk infection, bleeding, and scarring. A tag has its own blood supply, and cutting off circulation without proper technique can cause problems.

Be skeptical of creams and oils marketed to “dissolve” skin tags. No clinical evidence currently confirms that over-the-counter products remove skin tags. If a product claims to make them fall off, that claim is not supported by reliable studies.

How Are Skin Tags Removed?

Removal is optional and usually done for comfort or appearance rather than medical need. Several methods are used in clinical settings, and the right choice depends on size, location, and your preferences.

These are generally quick procedures. Some cause minor discomfort, and there can be a small risk of bleeding, infection, or a scar. A doctor or dermatologist can advise which method suits a tag on your eyelid versus one under your arm. Do not attempt removal on the eyelid or near the eye yourself.

Removal does not stop new tags from forming later. If you are prone to them, they can come back, and new ones can appear in other folds.

When Should You See a Doctor?

See a doctor if a growth changes in a way that concerns you. Skin tags are stable and soft. A growth that is firm, fixed, bleeding, changing color, or growing quickly is not behaving like a typical tag and should be evaluated.

You should also book a visit if you have a sudden crop of many new tags, especially with signs of high blood sugar, or if a tag becomes irritated, painful, or infected from rubbing against clothing or jewelry.

Most skin tags are harmless and can be left alone. The value of a check-up is not because tags are dangerous — it is because a sudden increase can be a useful signal about what is happening elsewhere in your body.