Skin tags are small, benign growths that hang off the skin. They are very common and usually harmless. Skin tags are caused by friction and may be linked to insulin resistance. They do not need treatment unless they bother you. Removal should be done by a doctor to avoid complications.
What Is a Skin Tag? Causes, Symptoms, and Removal
Skin tags are pieces of extra skin that stick out from the body. They are noncancerous growths made of collagen fibers and blood vessels surrounded by skin. Most skin tags are 2 to 5 millimeters across, but some can grow larger. They are usually flesh-colored or slightly darker. Skin tags do not turn into cancer. They are not warts or moles, though they can look similar.
Causes include friction from skin rubbing against skin or clothing. This is why they appear in body folds like the neck, armpits, and groin. Genetics also matter — if your parents had skin tags, you are more likely to get them. Obesity and type 2 diabetes are strongly associated with skin tags. The link may involve insulin resistance, but this is not fully proven.
Symptoms are straightforward: a small, soft, hanging piece of skin. They are usually painless unless caught on jewelry or clothing. They may become irritated if rubbed often. No other symptoms are typical. If a growth changes color, bleeds, or grows quickly, see a doctor.
Removal options are safe when performed by a healthcare provider. Doctors often use cryotherapy (freezing), electrocautery (burning), or simple excision (cutting after numbing). These methods are quick and leave little scarring. You should not try to remove a skin tag at home. Tying a string or cutting it yourself carries risks of bleeding, infection, and permanent marks.
What Causes Skin Tags?
Friction is the most common cause. Where skin rubs against skin or against clothing, the skin can form a small tag. This explains why skin tags often appear on the neck where shirt collars rub, in the armpits, under the breasts, and in the groin area.
Genetics play a clear role. If one or both parents have skin tags, you have a higher chance of getting them. Some people are simply prone to developing these growths.
Weight and metabolic health are factors. People who are overweight or have obesity have more skin folds, which increases friction. Studies also show a strong link between skin tags and insulin resistance, a condition where the body does not use insulin well. This may explain why skin tags are common in people with prediabetes or type 2 diabetes. However, the exact mechanism is not fully understood.
What Are the Symptoms of a Skin Tag?
Skin tags are easy to recognize. They are small, soft, and hang off the skin on a thin stalk. Most are the same color as your skin or slightly darker. They range in size from a grain of rice to a pea, sometimes larger.
They are usually painless. The only discomfort comes from friction or when a tag gets twisted or caught on clothing or jewelry. This can cause irritation, redness, or minor bleeding. Skin tags do not itch or hurt on their own.
Common locations include the neck, armpits, eyelids, groin, and the area under the breasts. They can appear singly or in groups.
How Are Skin Tags Diagnosed?
A doctor can usually diagnose a skin tag just by looking at it. No special tests are needed. The typical appearance — a small, hanging, flesh-colored growth — is enough to identify it.
If a growth looks unusual — for example, it has irregular edges, multiple colors, or is bleeding without reason — your doctor may want to check it more closely. In rare cases, a biopsy is done to rule out other conditions such as a mole or a form of skin cancer. But that is not routine for typical skin tags.
What Are the Treatment Options for Skin Tags?
Not all skin tags need treatment. Many people leave them alone. You only need to consider removal if the tag is painful, catches on clothing, or bothers you for cosmetic reasons.
Medical removal options include:
- Cryotherapy — Liquid nitrogen freezes the tag. It falls off within a week or two.
- Electrocautery — A heated device burns the tag off. Bleeding is minimal.
- Excision — The doctor numbs the area and snips the tag off with sterile scissors or a scalpel.
- Ligation — A small band is tied around the base of the tag to cut off blood flow. It falls off in a few days.
Each method is safe when done by a trained provider. Cryotherapy and excision are the most common. All are quick and do not usually leave a noticeable scar. You might feel a mild pinch or sting during the procedure.
Can You Remove a Skin Tag at Home?
Home removal is not recommended. No over-the-counter product has strong evidence of being both safe and effective. Some products freeze or dry out skin tags, but they can also damage the surrounding skin.
Cutting a skin tag yourself with nail clippers or scissors is dangerous. Even if you sterilize the tool, you risk infection, heavy bleeding, and scarring. Tying a string or dental floss around the base can cause pain, irritation, and incomplete removal. If the tag is not fully removed, it may grow back.
Natural remedies like apple cider vinegar or tea tree oil are popular online. However, no clinical studies confirm they work. These substances can burn the skin and cause chemical burns or dark spots. The evidence does not support their use.
When Should You See a Doctor About a Skin Tag?
See a doctor if a skin tag changes in any way. Signs to watch for include:
- Sudden growth
- Color change, especially to dark brown, black, or red
- Bleeding or oozing
- Pain that does not go away
- Itching or crusting
These changes may be normal irritation, but they could also be a sign of something more serious like a mole or skin cancer. A doctor can tell the difference quickly. Also see a doctor if you are unsure whether a growth is a skin tag or something else. It is better to be safe.
How Can You Prevent Skin Tags?
There is no proven way to prevent skin tags. Because genetics and friction play a role, some people will get them no matter what they do.
Reducing friction may help. Wearing loose clothing, using a moisture barrier powder in skin folds, and maintaining a healthy weight can reduce rubbing. For people with insulin resistance, managing blood sugar may lower the risk, but this has not been proven in clinical trials.
Frequently Asked Questions
Can skin tags turn into cancer?
No. Skin tags are benign growths and do not become cancerous. However, if a growth changes in appearance or bleeds, have it checked by a doctor to rule out other skin conditions.
Do skin tags grow back after removal?
They do not grow back in the exact same spot if fully removed. But new skin tags can form nearby or elsewhere on your body.
Is it safe to remove a skin tag with nail clippers?
No. Cutting a skin tag at home raises the risk of bleeding, infection, and scarring. Always have a doctor remove it.
What is the difference between a skin tag and a wart?
Warts are caused by the human papillomavirus (HPV) and have a rough, cauliflower-like surface. Skin tags are smooth, hanging growths with no viral cause.

