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Small dark bumps, spots and patches: when to get them checked

Several harmless bumps and patches can look alike, and a few look like melasma but aren't. Only a clinician can tell them apart. Here's when to get checked.

Education, not a diagnosis. Only a clinician who examines your skin can say what you have. Every point below shows how strong the evidence is and links to its source.

Who it affects

  • Small dark bumps on the face called dermatosis papulosa nigra are reported mostly in people with deeper skin tones, more often in women. They usually start in the teens and increase with age, and anyone can have them.[1,2]Supported
  • Small yellowish bumps called sebaceous hyperplasia are reported in middle-aged and older people.[3]Mechanistic only
  • Blue-gray or brown facial patches called nevus of Ota and Hori's nevus are reported most often in people of East Asian heritage, especially women, and anyone can be affected. Hori's nevus usually appears in middle age.[4,5]Supported

What it can look like

  • Dermatosis papulosa nigra appears as small dark or black raised bumps, often on the cheeks and forehead. They resemble small seborrheic keratoses, another common harmless growth.[1]Supported
  • Sebaceous hyperplasia appears as small yellowish bumps. They can be confused with a type of skin cancer (basal cell carcinoma), which is why new bumps are worth a clinician's look.[3]Mechanistic only
  • Nevus of Ota is usually a blue-gray or brown patch on one side of the face, sometimes with a color change in the white of the eye.[4]Supported
  • Hori's nevus usually shows as blue-brown or gray-brown speckles on both cheeks, appearing later in life.[4,5]Supported
  • Both sit deeper in the skin than melasma and can be mistaken for it.[4]Supported

What helps

Let a clinician tell them apart

These descriptions are here so you know what to ask. They are not a way to label your own spot.

  • Descriptions and photos can't identify a new or changing spot. A clinician examining it in person can.[1,3]Mechanistic only
  • Some harmless bumps look like skin cancers, and some skin cancers look harmless. That's the reason for a check, not a reason to panic.[3]Mechanistic only
  • A patch that looks like melasma but is really deeper pigment needs a different approach.[4,5]Supported

If you're thinking about removal

  • Removing small dark bumps by freezing, burning, snipping or laser can leave light or dark marks, scars, or raised scars on deeper skin.[1]Mechanistic only
  • A dermatology reference notes these bumps are harmless and generally best left alone, so removal is a choice to weigh, not a need.[1]Mechanistic only
  • Sebaceous hyperplasia can come back after treatment.[3]Mechanistic only
  • If you form raised scars, talk to a dermatologist before any removal.[1,6]Mechanistic only

Patches that don't behave like melasma

  • Deeper pigment patches often need several laser sessions from an experienced clinician, and they commonly return.[4]Mechanistic only
  • Hori's nevus is still considered hard to treat, and its cause is unclear.[5]Thin
  • When nevus of Ota involves the eye, rare problems such as glaucoma have been reported, which is one more reason to have it checked.[4]Mechanistic only

Hairline and scalp

This site covers facial skin. Hair and scalp concerns belong with a dermatologist.

  • Hairstyles that pull, such as tight braids, weaves and extensions, can cause hair loss over time that may become permanent.[7]Mechanistic only
  • Early treatment of hair-loss conditions matters, so see a board-certified dermatologist sooner rather than later.[7]Mechanistic only
  • Bumps on the back of the scalp can scar and cause permanent hair loss if left.[8]Supported

What to avoid

  • Removing bumps, spots or moles at home, with creams, tools or anything else.[1]Mechanistic only
  • Having bumps removed by a non-medical provider. Marks and scars are a real risk on deeper skin.[1]Mechanistic only
  • Deciding what a spot is from photos online.[1,3]Mechanistic only
  • Adding product after product to a stubborn patch you've assumed is melasma. Deeper pigment doesn't respond the same way.[4,5]Supported
  • Scrubbing darker, thicker, velvety skin on the neck or underarms. Scrubbing won't remove it.[9]Supported

When to see a clinician

  • Any spot or bump that is new, changing, growing, bleeding or itchy.[1,3]Mechanistic only
  • A blue, gray or slate-colored patch on the face, a patch on one side only, or one near or in the eye.[4,5]Mechanistic only
  • “Melasma” that isn't responding to care.[4,5]Mechanistic only
  • Before removing any bump, even one you've been told is harmless.[1]Mechanistic only
  • Thinning at the hairline, or scalp bumps along with hair loss.[7,8]Mechanistic only
  • Darker, thicker, velvety skin on the neck, underarms or groin. It can be linked to blood sugar or a medicine.[9]Supported

Questions to ask a provider

  • What do you think this is, and how can you tell?
  • Does it need treatment, or is leaving it alone reasonable?
  • If I want it removed, what marks or scars could that leave on my skin tone?
  • How much experience do you have treating bumps and pigment on skin like mine?
  • If this isn't melasma, how does that change the plan?

Label claims to question

“At-home mole and skin tag remover”
Spots that look alike can be very different things, and only a clinician can tell them apart. Removal on deeper skin can leave marks and scars.[1,3]
“Dark spot corrector for every kind of spot”
Some patches sit deep in the skin, unlike melasma, and don't respond like surface pigment. A clinician can tell you which kind you're dealing with.[4,5]

Where the evidence is thin

  • Several of the reference pages used here are old. Some date back to the 2000s, and they should be rechecked.
  • There is little data on sebaceous hyperplasia across skin tones.
  • Research on nevus of Ota and Hori's nevus comes mostly from reference pages and one review, and there is no standard treatment.

Keep going

Sources

Retrieved and read for this guide; reviewed 2026-09-13. A source listed here says what it establishes and what it does not — a citation is not an endorsement.

  1. [1]Dermatosis papulosa nigra · DermNet, 2008Establishes: DPN predominantly affects darker skin (types IV–VI), with up to 35% reported in Black Americans, more often women, and onset in adolescence. The papules are benign and resemble small seborrhoeic keratoses. Destructive treatments can cause pigment change, scarring and keloids, so they are generally best left untreated.Does not establish: Any help identifying a new or changing spot. Old page (2008).
  2. [2]Common Dermatologic Conditions in Skin of Color · Frazier WT, Proddutur S, Swope K. Am Fam Physician 2023;107(1):26-34. American Academy of Family Physicians, 2023Establishes: Clinical review with SORT ratings. Reported prevalence: DPN about 33% in skin of color, PFB 45–83% in affected groups, and keloids higher in types III–VI than I–II. Recommendations with SORT grades: stopping shaving for at least 8 weeks for PFB (SORT C); avoiding close shaves and tight collars or helmets for AKN; laser for AKN (SORT B). Notes erythema looks different on darker skin.Does not establish: The primary prevalence studies, which were not retrieved. One PIH percentage in the fetched page looked garbled and is not used.
  3. [3]Sebaceous hyperplasia · DermNet, 2014Establishes: Small yellowish benign bumps in middle-aged and older people. They are sometimes confused with basal cell carcinoma, and treatments can recur.Does not establish: Any data by skin tone. Older page.
  4. [4]Naevi of Ota, Hori naevus, naevus of Ito, dermal melanocytosis · DermNet (Ngan), 2003Establishes: Most common in Asian populations (0.2–0.6% of Japanese people have naevus of Ota) and more often in females. Colour is slate-brown or blue-grey. Hori naevus is acquired. These are deep dermal lesions, unlike melasma. Eye involvement rarely causes glaucoma, and ocular melanoma is very rare. Lasers need multiple sessions and recurrence is common.Does not establish: Any self-assessment. Very old page.
  5. [5]Acquired bilateral nevus of Ota-like macules (Hori nevus): etiologic and therapeutic considerations · Park JM, Tsao H, Tsao S. J Am Acad Dermatol 2009. PMID 19539841. JAAD, 2009 · read at abstract levelEstablishes: ABNOM is among the most common acquired dermal facial melanocytoses in people with dark skin, especially Asian women, typically middle-aged. The cause is unclear and treatment remains challenging.Does not establish: A standard therapy, or prevalence.
  6. [6]Keloid scars · NHS (UK), 2023Establishes: Higher likelihood is listed for South Asian, Chinese, African Caribbean or Black African descent, age 10–30, pregnancy and prior keloids. If at higher risk, avoid tattoos and piercings. Early acne treatment reduces scarring. Keloids cannot be prevented outright.Does not establish: Numeric risk.
  7. [7]Hair loss (darker skin tones hub) · American Academy of Dermatology, 2026Establishes: Hairstyles that pull (cornrows, weaves, extensions) can over time cause permanent hair loss. Early treatment of hair-loss conditions matters; see a board-certified dermatologist.Does not establish: Detailed guidance, or hair products causing facial acne (that is on the AAD acne page).
  8. [8]Folliculitis keloidalis (acne keloidalis nuchae) · DermNet (Ng; peer review Wales, Whittaker), 2024Establishes: Mostly affects men of African-Caribbean descent with textured hair, and is about 20 times more common in men. Triggers are very short haircuts, close shaving, and friction from headgear or collars. It can scar and cause permanent hair loss. Early care matters; treatments escalate to injections, isotretinoin, surgery or laser.Does not establish: Prevalence in women or in groups not of African descent, in any detail.
  9. [9]Acanthosis nigricans: Overview · American Academy of Dermatology, 2026Establishes: Acanthosis nigricans is dark, thickened, velvety skin, often in body folds. It is linked to insulin resistance, prediabetes and type 2 diabetes, obesity, hormonal conditions and medicines, and rarely internal cancer. It can be a warning sign that needs medical attention, and scrubbing will not remove it.Does not establish: How likely any one person is to have an underlying condition, or any data by skin tone. It does not describe darkening from friction or shaving.
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