Skin tags are extremely common—and while they’re harmless, many people want to know why they appear and how to remove them safely. Here’s a clear, medically accurate explanation.

What Are Skin Tags?

Skin tags (medically called acrochordons) are small, soft, flesh-colored growths that hang off the skin. They’re usually painless and noncancerous.

They most often appear in areas where skin rubs against skin or clothing, especially:

• Neck
• Armpits
• Groin
• Under the breasts
• Eyelids

Why Do Skin Tags Commonly Appear on the Neck and Armpits?

Doctors point to several well-established causes:

1. Friction (The Main Cause)

The neck and armpits experience constant rubbing—from skin, collars, bras, or movement. This friction can trigger excess skin growth.

2. Insulin Resistance & Blood Sugar Issues

Research shows a strong link between skin tags and:

• Insulin resistance
• Prediabetes or type 2 diabetes

High insulin levels may stimulate skin cell growth, increasing the likelihood of skin tags.

3. Hormonal Changes

Skin tags are more common during:

• Pregnancy
• Middle age and beyond

Hormonal shifts can affect how skin cells grow and regenerate.

4. Genetics

If your parents have skin tags, you’re more likely to develop them too.

5. Weight and Skin Folds

Overweight individuals may develop more skin tags due to increased skin friction and metabolic factors.

Are Skin Tags Dangerous?

No. Skin tags are benign (noncancerous) and do not turn into cancer.

However, see a healthcare provider if a growth:

• Changes color (especially dark or black)
• Bleeds without injury
• Becomes painful
• Grows rapidly or looks irregular

These signs may indicate something other than a skin tag.

How Can You Get Rid of Skin Tags Safely?

Best & Safest Options (Doctor-Recommended)

1. In-Office Medical Removal

A doctor or dermatologist can remove skin tags using:

• Sterile scissors
• Cauterization (burning)
• Cryotherapy (freezing)

These methods are quick, safe, and minimize infection risk.

At-Home Methods: What to Know

Some small skin tags may fall off on their own, but caution is essential.

What Experts Do NOT Recommend:

• Cutting skin tags with household scissors
• Tying dental floss around large skin tags
• Using harsh chemicals or acids
• Apple cider vinegar or “burning” remedies

These can cause:

• Bleeding
• Infection
• Scarring
• Delayed healing

Over-the-Counter Products

Some FDA-cleared skin tag removal kits exist, but results vary. Always:

• Follow instructions exactly
• Avoid use on the face, genitals, or large tags
• Stop if pain or irritation occurs

Can You Prevent Skin Tags?

You can’t always prevent them, but experts suggest reducing risk by:

• Maintaining a healthy weight
• Managing blood sugar levels
• Reducing friction (looser clothing, breathable fabrics)
• Keeping skin clean and dry

When Should You See a Doctor?

Make an appointment if:

• You’re unsure whether it’s a skin tag
• The tag is painful, bleeding, or infected
• It’s on the eyelid, face, or genital area
• You want safe removal without scarring

The Bottom Line

Skin tags on the neck and armpits are common, harmless, and linked to friction, hormones, and metabolism. While they don’t require treatment, professional removal is the safest option if they bother you.