What is dermatosis papulosa nigra?
Dermatosis papulosa nigra, commonly shortened to DPN, is a benign condition characterised by multiple small, dark or skin-coloured raised growths.
DPN commonly appears on the:
- Cheeks
- Temples
- Forehead
- Area around the eyes
- Neck
- Upper chest
- Upper trunk
It is considered a variant of seborrheic keratosis and is seen most often in people with medium-to-deep skin tones, including people of African and Asian ancestry. The bumps may begin during adolescence or early adulthood and become more numerous with age.
What causes DPN?
The exact cause is not fully understood.
DPN often occurs in several members of the same family, suggesting a genetic tendency. The number of lesions may gradually increase with age.
The condition is not caused by:
- Dirt
- Poor cleansing
- Eating oily food
- A contagious infection
- Failure to exfoliate
Creams and scrubs cannot reliably prevent genetically influenced DPN from developing.
What is a seborrheic keratosis?
A seborrheic keratosis is a common benign skin growth that usually appears during middle age or later.
It may look:
- Waxy
- Rough
- Scaly
- Warty
- Raised
- Brown, tan, black, white or skin-coloured
- As though it has been stuck onto the skin
Seborrheic keratoses commonly develop on the face, scalp, neck, chest, abdomen or back. They do not normally occur on the palms or soles.
How does Dr. Cheena Langer assess the growths?
A consultation may include:
- Examining the size, shape, colour and surface
- Checking whether the lesions are DPN, seborrheic keratoses or another condition
- Looking for unusual or suspicious features
- Asking whether the lesions bleed, itch or grow
- Reviewing previous removal attempts
- Assessing the patient’s skin tone
- Reviewing pigmentation and keloid history
- Checking whether one or many lesions are present
- Selecting a suitable removal method
- Discussing scarring, pigmentation and recurrence
Dermoscopy or skin biopsy may be considered when the diagnosis is uncertain.
Types, options and detailed guidance
Is DPN the same as a mole?
No.
DPN growths may look like tiny moles, but they are generally benign epidermal growths rather than melanocytic naevi.
A patient may describe the lesions as:
- Small black moles
- Brown facial bumps
- Tiny skin tags
- Raised freckles
- Small wart-like growths
Because several different conditions can appear similar, the diagnosis should be confirmed before cosmetic removal.
A changing, irregular, bleeding or unusually coloured lesion should not automatically be labelled DPN.
Is DPN dangerous or contagious?
DPN is generally benign and is not contagious.
It does not spread from person to person through:
- Touching
- Sharing towels
- Cosmetics
- Shaving
- Food
- Poor hygiene
Treatment is usually elective unless a lesion becomes repeatedly irritated or the diagnosis is uncertain.
Is seborrheic keratosis the same as seborrheic dermatitis?
No. These are entirely different conditions.
Seborrheic keratosis
A benign raised skin growth that may have a waxy or stuck-on appearance.
Seborrheic dermatitis
An inflammatory condition that produces redness, itching, flaking and dandruff-like scale.
Removing a seborrheic keratosis does not treat seborrheic dermatitis, and dandruff treatment does not remove a seborrheic keratosis.
Are seborrheic keratoses cancerous?
Ordinary seborrheic keratoses are benign.
The problem is that some seborrheic keratoses can resemble:
- Melanoma
- Basal-cell carcinoma
- Squamous-cell carcinoma
- Actinic keratosis
- A mole
- A wart
A dermatologist can often diagnose a typical lesion through examination. When a growth looks unusual or resembles skin cancer, it may need shave removal, curettage or biopsy so that tissue can be examined under a microscope.
Which changes require medical assessment?
Arrange a dermatology consultation when a growth:
- Appears suddenly
- Grows quickly
- Becomes very dark
- Develops several colours
- Bleeds without repeated friction
- Becomes painful
- Forms an ulcer or non-healing sore
- Has an irregular border
- Looks different from the other growths
- Changes noticeably
- Becomes persistently itchy
- Has an uncertain diagnosis
A sudden appearance of many new growths also deserves assessment rather than immediate cosmetic removal.
Does every DPN or seborrheic keratosis need removal?
No.
Removal may not be required when the growth is:
- Clearly benign
- Small
- Stable
- Painless
- Not irritated
- Not troubling the patient
Removal may be considered when it:
- Causes cosmetic concern
- Catches during shaving
- Rubs against jewellery
- Catches on clothing
- Becomes repeatedly inflamed
- Itches or bleeds through friction
- Interferes with skincare or makeup
- Needs laboratory examination
The decision to remove benign lesions is personal and should take into account scarring, pigment change, treatment cost and the possibility of developing new lesions later.
Why might a biopsy be recommended?
A biopsy or histopathological examination may be recommended when a lesion:
- Has an unusual appearance
- Is larger or darker than the others
- Changes rapidly
- Bleeds without an obvious reason
- Has irregular pigmentation
- Cannot be confidently distinguished from a mole or skin cancer
- Returns in an unusual way after treatment
Destructive treatments such as cautery or cryotherapy may not leave an adequate specimen for laboratory examination. A suspicious lesion should therefore be assessed before it is destroyed.
How can DPN be removed?
Published treatment options for DPN include:
- Low-intensity electrodesiccation
- Electrocautery
- Light curettage
- Snip or shave removal
- Cryotherapy in selected cases
- Selected laser procedures
No single technique is ideal for every patient. Treatment should be selected according to skin tone, lesion size, number, location, cost and risk of pigmentation.
The exact method offered by Aastha Skin Centre is decided after examination.
What is electrodesiccation or electrocautery?
Electrodesiccation uses controlled electrical energy to dry or destroy a selected superficial growth.
A typical procedure may involve:
- Cleansing the skin
- Applying or injecting local anaesthetic
- Treating the lesion with a fine electrode
- Removing loose tissue when required
- Controlling minor bleeding
- Applying suitable aftercare
Small comparison studies have found electrodesiccation to be effective for DPN, with results broadly comparable to curettage and selected laser treatments. Hyperpigmentation was among the common adverse outcomes.
Additional care and practical advice
What is curettage?
Curettage uses a small surgical instrument called a curette to gently scrape away a suitable superficial growth.
It may be performed:
- Alone
- After local anaesthesia
- With electrodesiccation
- After another treatment has softened or destroyed the lesion
A small controlled DPN trial reported high average clearance with curettage, although the study involved only ten patients and cannot predict an individual patient’s outcome.
Growths are examined before destruction to reduce the risk of treating a suspicious lesion as harmless DPN or seborrheic keratosis.
Care is provided under Dr. Cheena Langer, MBBS, MD Dermatology, Consultant Dermatologist.
The risk of dark marks, light patches and visible scarring is considered before the removal method is selected.
Patients with numerous facial lesions may be advised to begin with a limited area rather than aggressive full-face treatment.
Atypical lesions may be removed in a way that preserves tissue for microscopic examination.
DPN and seborrheic keratosis removal are available at both Karan Nagar and Paloura.
Procedure cost depends on:
- Number of lesions
- Lesion size
- Face, neck or body location
- Removal technique
- Anaesthesia
- One session or staged treatment
- Need for a test area
- Dressing requirements
- Need for histopathology
- Follow-up care
Exact pricing is provided after assessment. Removing a few isolated bumps requires a different plan from treating numerous DPN lesions across the face and neck.
How care is planned
- Assessment comes before treatment selection.
- Options, limitations, aftercare and expected timelines are explained.
- The plan is adapted to diagnosis, skin type and medical history.
Choose a clinic in Jammu
Karan Nagar
Lane 2, Karan Nagar, near Amphalla Chowk, Jammu – 180005Doctor consultation:
Mon–Sat 11:00 AM–4:00 PM
Sun 11:00 AM–3:00 PM
Paloura Chowk
Top Paloura, opposite Government Senior Secondary School, Jammu – 181121Doctor consultation:
Mon–Sat 6:00 PM–8:00 PM
Sun 10:30 AM–12:00 PM
Frequently asked questions
Can seborrheic keratoses be frozen?
Selected seborrheic keratoses can be treated with cryotherapy using liquid nitrogen.
After treatment, the lesion may:
- Become red or swollen
- Form a blister
- Dry into a crust
- Fall away over several days
- Leave temporary or persistent pigment change
Cryotherapy is generally more suitable for clearly benign lesions because it does not provide tissue for histopathological examination. It may also be less predictable for thick growths and can cause light or dark marks.
Cryotherapy may require particular caution in Indian and deeper skin tones because light patches can be conspicuous.
What is shave removal?
Shave removal uses a sterile blade to remove a raised lesion at or near the skin surface after local anaesthesia.
It may be chosen when:
- The lesion is relatively large
- Tissue needs to be preserved for examination
- The diagnosis requires confirmation
- The growth repeatedly catches or bleeds
Possible effects include:
- Bleeding
- Crusting
- Infection
- A flat scar
- Darkening
- Lightening
- Recurrence when part of the growth remains
The removed tissue may be sent for histopathology when medically indicated.
Can lasers remove DPN or seborrheic keratoses?
Selected laser systems have been studied for DPN and seborrheic keratoses.
Reported DPN treatments include several vascular, pigment-targeting and ablative lasers. However, the evidence consists mainly of small studies, pilot trials and case series. Costs and risks vary, and no laser has been proven universally superior to established methods such as electrodesiccation or curettage.
Laser treatment should not be advertised as:
- Scar-free
- Painless
- Permanent prevention
- Suitable for every skin tone
- Better than all other methods
Is DPN removal painful?
Treatment can cause discomfort.
Depending on the method, patients may feel:
- Stinging from anaesthetic
- Heat
- Pinprick sensations
- Scraping
- Pressure
- Tenderness after treatment
Topical or injected local anaesthesia may be used according to the number, size and location of lesions.
A small comparison trial found that treatment discomfort differed between methods, but every technique can cause some sensation.
The website should not promise completely painless removal.
Can many lesions be removed in one session?
Sometimes several small lesions can be treated during one appointment.
The appropriate number depends on:
- Number of lesions
- Facial area involved
- Treatment method
- Anaesthesia
- Patient comfort
- Pigmentation risk
- Expected wound-care burden
- Time available
Treating a large number aggressively in one session may increase inflammation and post-inflammatory pigmentation.
A staged approach or test area may be recommended for patients with numerous facial DPN lesions.
What is a test treatment?
A test treatment involves removing one or a few representative lesions before treating a larger area.
It may be useful when:
- The patient has a strong pigmentation tendency
- Many lesions are present
- The patient has deeper skin tone
- Previous procedures caused dark or pale marks
- The proposed method has not been used on that patient before
- The cosmetic area is particularly visible
The test area can be reviewed for healing, colour change and scar formation before proceeding with wider treatment.
What happens after removal?
Temporary effects may include:
- Redness
- Tenderness
- Swelling
- Small crusts
- Mild bleeding
- Dark marks
- Light marks
- Itching during healing
The lesions may initially look darker or form small scabs before separating from the skin.
Patients should not scratch, scrub or pick the treated areas because this can increase the risk of infection, scarring and pigmentation.
Get a clear plan for dpn & seborrheic keratosis removal
Request a consultation with Dr. Cheena Langer at Karan Nagar or Paloura Chowk.
Medical disclaimer: Results may vary from person to person. This content is for informational purposes only and does not substitute a consultation with a qualified medical professional. Dr. Cheena Langer, MD is a registered medical practitioner.