Three small spots that look nothing alike once you know what to look for. But if you have not learned the difference yet, the confusion is completely understandable. This guide walks through the identifying features of each condition and explains why the identification step matters, because one of these three always requires a dermatologist visit before any removal is considered.
For the complete picture on moles specifically, see our full moles guide. This page is the side-by-side comparison.
Key takeaways
Color, shape, and cancer risk are the three things that separate these conditions.
- Moles: brown, tan, or dark pigmented spots, flat or slightly raised. Require in-person dermatologist examination before any at-home removal is considered.
- Skin tags: flesh-colored, stalked polyps. No cancer risk. Appropriate for at-home plasma pen treatment once identified correctly.
- Cherry angiomas: bright red or purple smooth domes. No cancer risk. Appropriate for at-home plasma pen treatment once identified correctly.
- A dangerous mole cannot be distinguished from a harmless one by sight alone. This is the most important line on this page.
- If you are not certain which you have, see a dermatologist before any at-home treatment.
Why identification matters before any treatment
Skin tags and cherry angiomas are both confirmed-benign conditions. A dermatologist can confirm that categorically, and at-home treatment is appropriate for them once identified correctly.
Moles are different. A mole can be or become melanoma. A dangerous mole cannot be distinguished from a harmless one by sight alone, even by experienced physicians without tools. That means no mole should be treated at home without a dermatologist first examining that specific mole in person and confirming it is benign. Any mole removal at home must come after that examination and clearance, not before.
This distinction is the most important information on this page. The comparison table below reflects it directly. The American Academy of Dermatology and the NIH MedlinePlus skin conditions library both recommend any changed or concerning mole be evaluated in person by a dermatologist promptly.
What each one actually is
Moles
A mole (medically: melanocytic nevus) is a growth of melanocytes clustering together instead of distributing evenly. Most adults have between 10 and 40. They range from flesh-toned to dark brown, flat or slightly raised. Most are completely harmless. Some are not. Because a dangerous mole is indistinguishable from a harmless one by appearance alone, any mole requires in-person dermatologist examination before any removal is considered. This is the standard recommendation from the American Academy of Dermatology and the Mayo Clinic.
Skin tags
A skin tag (medically: acrochordon) is a soft, flesh-colored polyp of loose skin hanging from a narrow stalk. No cancer risk. Most common on the neck, armpits, under the breasts, and groin folds. For the full guide see our skin tag article.
Cherry angiomas
A cherry angioma is a bright-red or purple dome of clustered capillaries just under the skin surface. Entirely benign. Bleeds easily if scraped. Appears most often after age 30. For the full guide see our cherry angioma article.
Side by side: the comparison table
Read this once, then we will walk through the four identification cues in plain English. The mole column is the only column where the at-home pathway is gated behind a dermatologist exam.
The mole column is the only column on this page where the at-home pathway is gated. Skin tags and cherry angiomas carry no cancer risk and are confirmed-benign by definition. Moles are not.
Safety note: moles require a dermatologist visit before any at-home treatment
A mole can be or become melanoma. A dangerous mole cannot be told from a harmless one by sight alone, even by physicians without tools. Before any mole is treated at home, a dermatologist must physically examine that specific mole in person and confirm it is benign. Book that appointment before reaching for any device. This applies to every mole, including ones that have been present for years and look unchanged.
- Any mole that is asymmetric, has irregular borders, shows color variation, is larger than 6 mm, or is changing over time: see a dermatologist promptly.
- A spot that bleeds on its own without trauma: see a dermatologist regardless of appearance.
- If you are not 100% certain what you are looking at: see a dermatologist before any treatment.
How to tell them apart using four cues
Cue 1: Color
Color is the fastest first sort. Moles are some shade of brown, tan, or dark (pigmented, from melanocytes). Cherry angiomas are bright red or vivid cherry-red (vascular, the color comes from blood vessels). Skin tags are flesh-colored and match the surrounding skin. These three color families rarely overlap.
Cue 2: Stalk vs dome vs flat
A skin tag has a narrow stalk connecting it to the skin surface. A cherry angioma is a small smooth dome flush against the skin with no stalk. A mole is flat or slightly raised all around without a stalk. If you can pinch the base of the spot and it wiggles on a thin neck of skin, it is almost certainly a skin tag.
Cue 3: Size and texture
All three typically fall in the 1 to 5 mm range, so size alone does not separate them cleanly. Texture does. Skin tags are soft and compressible. Cherry angiomas feel firm and smooth, almost like a tiny solid dome. Moles feel smooth to slightly rough and do not compress the way a stalked skin tag does.
Cue 4: Does it bleed easily?
Cherry angiomas bleed readily if scratched or irritated, because they are clusters of capillaries near the surface. Skin tags and moles do not bleed on their own. A spot that bleeds without any trauma, or that repeatedly bleeds, scabs, and then bleeds again, is a flag for a dermatologist visit regardless of which of the three it looks like.
The one rule that applies to every mole: see a dermatologist first
A mole can be benign your whole life, or it can change. The ABCDE warning signs (Asymmetry, Border, Color variation, Diameter over 6 mm, Evolving) are the standard clinical checklist, but even a mole that passes all five criteria can still need evaluation. The only person equipped to confirm a mole is safe is a dermatologist examining it in person.
For the full ABCDE walkthrough and a plain-English guide to the warning signs, see our article When Should I Be Worried About a Mole: The ABCDE Checklist.
The NIH MedlinePlus skin conditions library and the AAD both recommend any mole with changed characteristics be evaluated promptly. This is not a DTC policy. It is the clinical standard.
When at-home treatment is appropriate for each condition
Skin tags
Confirmed skin tags (flesh-colored, stalked, in a friction-prone location, not bleeding on their own) are appropriate for at-home plasma pen treatment. A 5-minute treatment at the correct power setting creates a small protective scab that falls off on its own between Day 3 and Day 7, leaving clear skin by Week 2 to 3.
Cherry angiomas
Confirmed cherry angiomas (bright red, dome-shaped, no stalk, stable in size) are appropriate for at-home plasma pen treatment using the same protocol. The spot carbonizes at the cellular level without damaging surrounding tissue. Scab falls off Day 3 to 7, clear skin by Week 2 to 3.
Moles
At-home mole treatment is appropriate only after a dermatologist has physically examined that specific mole and confirmed in writing that it is benign and not a concern. If you have not had that examination, do not treat the mole at home. If you have the clearance, the at-home pathway is covered in full at After Your Dermatologist Clears a Benign Mole: At-Home Removal Options.
Related conditions you may also be seeing
Small spots on the skin are rarely just three conditions. A few that show up in the same size range and get confused with moles, skin tags, or cherry angiomas:
Seborrheic keratosis: waxy, tan to brown, slightly raised, with a stuck-on appearance. Common after 40. Benign but often mistaken for moles. See our seborrheic keratosis guide.
DPN (Dermatosis Papulosa Nigra): small dark spots on the face and neck, most common in people with deeper skin tones. Often described as small moles but they are a distinct condition. See our DPN guide.
The plasma pen is the right tool for two of these three conditions. For the third, the right tool is a dermatologist. That line is not a legal disclaimer. It is the honest answer.
FAQ
Frequently asked questions
Quick answers
Common questions about moles, skin tags, and cherry angiomas from readers trying to figure out what they have and what to do about it.
↓ Tap each question to reveal the answer.
The bottom line
Skin tags are flesh-colored stalked polyps with no cancer risk. Cherry angiomas are bright-red smooth domes with no cancer risk. Moles are pigmented flat or raised spots that require in-person dermatologist examination before any removal is considered, because a dangerous mole cannot be told from a harmless one by sight alone.
The plasma pen is appropriate for two of those three conditions. For moles, the next step is always a dermatologist. For the full picture on moles, see our complete moles guide.
Related guides in this series
- Moles: The Complete Guide to Identification and When to See a Dermatologist (the pillar)
- When Should I Be Worried About a Mole? The ABCDE Checklist
- After Your Dermatologist Clears a Benign Mole: At-Home Removal Options
- Cherry Angiomas: The Complete Guide (cross-cluster)
- Skin Tags: The Complete Guide (cross-cluster)
Outbound references: American Academy of Dermatology, NIH MedlinePlus, Skin Conditions, Mayo Clinic.
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