Skin Tags: Why They Form and How Doctors Remove Them

Skin tags are common, harmless skin growths that many people notice over time. In this guide, we'll explain what skin tags are, why they form, and the medical options for removing them. We'll also cover when to see a doctor, simple prevention tips, and how to get a free online symptom check before deciding on treatment.

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What Are Skin Tags?

Skin tags (acrochordons) are small, soft, skin-colored or slightly darker growths that typically hang off the skin by a thin stalk. They most often appear in areas where skin rubs against skin or clothing, such as:

• Eyelids and under the eyes
• Neck and under the chin
• Armpits
• Groin folds
• Under the breasts

Key points about skin tags:

• Size: Usually 1–5 millimeters, though they can grow larger.
• Texture: Soft, squishy, and movable.
• Color: Match nearby skin or be slightly darker.
• Painless: They generally don't hurt unless irritated by rubbing or jewelry.

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Why Skin Tags Form

The exact cause of skin tags isn't fully understood, but several factors contribute to their development:

1. Friction and Skin Rubbing
   Skin tags often emerge in areas where skin surfaces meet (e.g., armpits, groin). Constant friction can stimulate small blood vessels, leading to benign growths.

2. Hormonal Changes
   Hormone fluctuations—especially during pregnancy—are linked to increased skin tag formation. These typically appear on the neck, underarms, and chest.

3. Genetics
   A family history of skin tags may raise your chance of developing them. If one or both parents have skin tags, you're more likely to get them.

4. Age
   Skin tags become more prevalent after age 30 and rise steadily with age. They're less common in children.

5. Metabolic Factors
   Conditions such as obesity, insulin resistance, and type 2 diabetes correlate with a higher incidence of skin tags. Researchers suspect a link between growth factors in blood and tag formation.

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Who's at Higher Risk?

While anyone can develop skin tags, certain factors increase risk:

• Overweight or obese individuals (increased skin folds).
• People with type 2 diabetes or metabolic syndrome.
• Women during pregnancy.
• Adults over 30 years of age.
• Those with a family history of skin tags.

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When to Seek Medical Advice

Most skin tags are harmless, but consult a doctor if you notice:

• Rapid growth in size or number.
• Bleeding, pain, or signs of infection (redness, pus).
• Changes in color (e.g., very dark, black).
• A lesion that looks like a mole, wart, or unusual skin growth.

If you're unsure whether your growth is actually a skin tag, you can get a free AI-powered assessment in just minutes to help determine your next steps. Always speak to a doctor about anything that could be life threatening or serious.

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How Doctors Diagnose Skin Tags

Diagnosis is usually straightforward and done through a simple exam:

• Visual Inspection: A doctor examines the lesion's size, shape, color, and stalk.
• Dermatoscope: A handheld magnifier may be used to rule out other skin conditions.
• Biopsy (Rare): If a lesion looks suspicious, a small tissue sample may be removed for lab testing.

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Medical Removal Options

If a skin tag bothers you—cosmetically or because it snags on clothing—medical removal is quick and safe. Common methods include:

1. Snip Excision

   • Performed under local anesthesia.
   • Doctor uses small, sterile scissors or a scalpel to cut off the tag at its base.
   • Minimal bleeding; stitches rarely needed.
   • Little to no scarring if done correctly.

2. Cryotherapy (Freezing)

   • Liquid nitrogen is applied to freeze the tag.
   • Frozen tissue falls off in days to weeks.
   • May require multiple sessions for larger tags.
   • Mild discomfort, burning, or blistering can occur.

3. Cauterization (Burning)

   • Uses heat (electrocautery) or a chemical agent to burn off the tag.
   • Blood vessels seal during the procedure, reducing bleeding.
   • Quick recovery; scab forms and falls off.

4. Ligation (Tying Off)

   • A surgical thread or rubber band is tied tightly at the base to cut off blood flow.
   • The tag dies and falls off after several days.
   • Usually performed for small tags.

5. Laser Therapy

   • A focused beam of light vaporizes the tag.
   • Less common due to higher cost.
   • Useful for tags in sensitive areas (e.g., eyelids).

What to Expect After Removal

• Keep the area clean and dry for 24–48 hours.
• Apply a thin layer of antibiotic ointment and cover with a bandage if recommended.
• Avoid scratching or picking at the site.
• Watch for signs of infection: increased pain, redness, swelling, or discharge.
• Follow up if healing seems delayed or abnormal.

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At-Home and Over-the-Counter Options

Some over-the-counter products claim to remove skin tags. These typically involve:

• Topical Solutions: Apply daily over several weeks to freeze or dry out the tag.
• Applicator Pens: Deliver a mild electric current to the tag's base.
• Tag Removal Kits: Combine adhesive rings and drying agents to separate the tag.

Caution:

• At-home methods can cause irritation, scarring, or infection if used improperly.
• Always follow manufacturer instructions closely.
• Don't use these products on sensitive areas (eyelids, genitals) or if you have diabetes or poor circulation without medical advice.

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Preventing Skin Tags

While you can't always prevent skin tags, you can reduce friction and irritation:

• Wear loose-fitting, breathable clothing.
• Keep skin folds clean and dry.
• Maintain a healthy weight through diet and exercise.
• Monitor hormone-related changes (e.g., during pregnancy) with your doctor.
• Check your skin regularly for new growths.

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Key Takeaways

• Skin tags are benign, soft growths that form in friction-prone areas.
• Factors such as genetics, hormonal shifts, and metabolic health play a role.
• Removal methods include snip excision, cryotherapy, cauterization, ligation, and laser therapy.
• At-home kits exist but carry risks if misused.
• Always keep an eye on changes in size, color, or sensation; consult a doctor when in doubt.
• Before visiting a doctor, try a free skin tag symptom checker to understand your symptoms and what questions to ask during your appointment.
• Speak to a doctor about anything that could be life threatening or serious.

Skin tags are generally more of an annoyance than a health threat. With proper care and medical advice, you can manage them safely and effectively. If you're ever in doubt, reach out to a healthcare professional for personalized guidance.