Skin Tags: Why They Form and When to Remove Them

Skin Tags: Why They Form and When to Remove Them

Skin tags are small, soft, benign growths that hang off the skin by a thin stalk. Medically known as acrochordons, they most often appear on the neck, underarms, eyelids, groin, and under the breasts. While harmless, you may want to know why they form and when—if ever—to consider removing them.

Why Skin Tags Form

Although skin tags are noncancerous and usually painless, their exact cause isn't fully understood. Several factors, however, increase the likelihood of developing them:

• Friction and rubbing
  Skin-on-skin contact or rubbing against clothing can trigger extra skin growth. Common areas include the neck, underarms, and groin.

• Age and genetics
  They become more common after age 30 and often run in families. If a parent or sibling has multiple skin tags, you're more likely to develop them too.

• Hormonal changes
  Pregnancy and hormonal shifts can increase the growth of skin tags, likely due to elevated levels of growth factors in the blood.

• Obesity and metabolic syndrome
  Extra weight can lead to more skin folds and friction. Studies also show a link between skin tags and insulin resistance, high blood sugar, and Type 2 diabetes.

• Human papillomavirus (HPV)
  Some research suggests a possible association with certain HPV strains, though it isn't the sole cause.

Common Locations

Skin tags favor areas where skin rubs together or against clothing:

• Neck folds
• Underarms
• Groin
• Under breasts
• Eyelids or the areas around the eyes

When to Leave Them Alone

Most skin tags do not require any treatment. You may choose to leave them alone if they are:

• Small (a few millimeters in diameter)
• Asymptomatic (not painful or itchy)
• Cosmetic concerns aren't significant

Since they're benign, monitoring them for any sudden changes is usually sufficient.

When to Consider Removal

You might decide to remove a skin tag if you experience any of the following:

• Irritation or pain
  Tags caught on jewelry or clothing can bleed, hurt, or become infected.

• Rapid growth or changes
  If a tag darkens, grows quickly, or changes in shape, get it checked to rule out other conditions.

• Cosmetic reasons
  Many people prefer removal for a smoother appearance, especially in visible areas like the neck or face.

• Interference with daily activities
  Tags that snag easily during shaving, exercise, or dressing can be more trouble than they're worth.

Safe Removal Methods

While there are home remedies floating online (like applying tea tree oil or tying off a tag), the safest way to remove skin tags is under medical supervision. Your healthcare provider may recommend:

• Snip excision
  Using sterile scissors or a scalpel to cut the tag off. Local anesthesia is applied to minimize discomfort.

• Cryotherapy
  Freezing the tag with liquid nitrogen causes it to fall off after a few days.

• Cauterization
  Burning the base of the tag with electrical current to remove it and seal blood vessels.

• Ligation
  Tying a small band around the tag's stalk to cut off its blood supply; the tag falls off in a week or two.

Each method has pros and cons:

• Pros: Quick procedure, minimal scarring, office-based.
• Cons: Mild pain or bruising, risk of infection if not done properly.

Risks of Do-It-Yourself Removal

Removing a skin tag at home can lead to complications:

• Bleeding
  Tags have a blood supply; cutting them can cause more bleeding than expected.

• Infection
  Non-sterile tools introduce bacteria, leading to redness, swelling, or pus.

• Scarring
  Improper technique may leave a noticeable scar or skin discoloration.

• Misdiagnosis
  What looks like a skin tag might be something else—a mole, wart, or even a skin cancer—requiring different care.

When to Seek Medical Advice

Although skin tags are harmless, contact your doctor if you notice:

• Unusual bleeding, pain, or discharge
• A sudden change in size, shape, or color
• Multiple new growths appearing rapidly
• Tags in areas where you can't properly monitor them (e.g., eyelids)

If you're experiencing any unusual symptoms or simply want clarity about your skin condition, try Ubie's free AI-powered symptom checker to get personalized insights and find out whether you need to see a healthcare provider.

Preventing New Skin Tags

You can't always stop skin tags from forming, but these steps may help reduce friction and risk:

• Wear loose-fitting clothes in areas prone to rubbing.
• Keep skin folds clean and dry.
• Maintain a healthy weight with diet and exercise.
• Manage blood sugar if you have diabetes or prediabetes.
• Treat underlying hormonal imbalances with your doctor's guidance.

What to Expect After Removal

Recovery is typically quick and uneventful:

• The area may be tender or mildly swollen for a few days.
• Keep it clean and dry; apply an antibiotic ointment if recommended.
• Avoid strenuous activity that could strain the site until it heals.
• Watch for signs of infection—redness, increased pain, or discharge—and call your doctor if they occur.

When to Worry

While skin tags themselves are not dangerous, any skin lesion that behaves atypically deserves medical attention. Seek immediate care if you experience:

• Severe pain or swelling
• Rapid enlargement of a bump
• Persistent bleeding that won't stop
• Signs of systemic infection (fever, chills)

Final Thoughts

Skin tags are a common and benign skin condition. Understanding why they form and recognizing when to leave them alone—or see a healthcare professional—can keep you comfortable and confident in your skin. If you're ever in doubt, it's better to get a professional opinion than to risk complications.

Always remember: if you notice any worrying changes or have concerns that something serious could be developing, speak to a doctor.