Electrodesiccation and Curettage: How Scrape-and-Burn Removes a Growth

What Happens During Electrodesiccation and Curettage

The dermatologist numbs the growth with a local anesthetic injection, then uses a curette — a small, spoon-shaped surgical tool — to scrape the abnormal tissue away from the firmer, healthy skin beneath it. Electrodesiccation follows: a fine electrode delivers an electric current into the wound bed, sealing small blood vessels and destroying any abnormal cells the curette left behind. Most growths need two or three of these scrape-and-burn cycles before the base looks clean.

A single lesion usually takes fifteen to thirty minutes from numbing to the final pass, done entirely in the office without stitches. Because the wound is left open rather than sewn shut, it heals from the bottom up over the following weeks — the tradeoff for skipping a formal excision.

The technique has been a staple of general dermatology for decades precisely because it needs no operating room, no sutures, and very little specialized equipment beyond the curette and the electrosurgical unit — which is also why it tends to be one of the more affordable in-office removal options when a growth is a good candidate for it.

Which Growths This Procedure Treats

Electrodesiccation and curettage works best on growths that are noticeably softer or more friable than the skin around them, since that texture difference is what lets the curette find a clean plane. That includes benign seborrheic keratoses, skin tags, and pyogenic granulomas, along with some viral growths such as molluscum contagiosum — small raised bumps that spread through skin-to-skin contact and most often appear in children ages 1 to 10 1Ref 1Centers for Disease Control and Prevention (2024).About Molluscum Contagiosum.Definitional/epidemiologic statement that molluscum contagiosum causes small raised sores that spread by skin-to-skin contact and most commonly affects children aged 1-10..

It is also an established option for select, biopsy-confirmed, low-risk skin cancers, chosen only after the diagnosis and growth pattern are already known. It is never used to find out what a growth is in the first place — that determination comes first, by other means.

Why a Biopsy Almost Always Comes First

Curettage destroys the layered tissue architecture a pathologist needs to measure how deep a tumor runs and whether its margins are clear, so it is the wrong tool for any growth that hasn't been diagnosed yet — especially one that is pigmented, asymmetric, or changing. Dermatologists weigh a spot like that against known warning features: asymmetry, an irregular border, uneven color, a diameter larger than a pencil eraser, and evolution over time 2Ref 2Tsao H, Olazagasti JM, Cordoro KM, et al. (2015).Early detection of melanoma: reviewing the ABCDEs.The ABCDE criteria (asymmetry, border irregularity, color variegation, diameter, evolving) used to flag a pigmented or changing lesion for further evaluation before any removal technique is chosen., before deciding whether it needs a skin biopsy at all, let alone which removal technique fits.

Melanoma, specifically, is staged first and then treated with defined surgical excision margins, or with Mohs micrographic surgery for certain patterns — never scraped away with a curette 3Ref 3Swetter SM, Tsao H, Bichakjian CK, et al. (2019).Guidelines of care for the management of primary cutaneous melanoma.That melanoma is treated with defined surgical excision margins or Mohs micrographic surgery for certain patterns, in contrast to curettage-based removal.. A spot that fits any of those features is not something a description on a page can clear; it needs to be looked at in person.

What the Appointment Actually Feels Like

The anesthetic injection itself is the sharpest part — a quick sting followed by a few seconds of pressure — and after that the area should feel numb, not painful, through the rest of the procedure. Most people notice firm pressure and vibration during the scraping, then a brief, distinct burning smell during the electrodesiccation step. The smell is an expected part of the process, not a sign that anything is wrong.

No sedation is typically needed for a single small lesion, and most people drive themselves home afterward. Numbness fades within an hour or two as the local anesthetic wears off, at which point the area can feel tender rather than sharply painful.

Recovery: What the Wound Looks Like Week by Week

Because the wound is left open instead of stitched closed, it forms a scab within a day or two and takes roughly two to four weeks to fully heal, depending on the size and location of the growth. Most wound-care instructions call for cleaning the area once or twice a day with plain soap and water, then covering it with a thin layer of petroleum jelly and a fresh bandage until the scab separates on its own.

Picking at the crust, or letting the wound dry out and crack, both slow healing and raise the odds of a worse scar. Once the new skin has closed over, protecting it from ultraviolet exposure — the same sun avoidance that lowers skin cancer risk more broadly 4Ref 4National Cancer Institute (PDQ Screening and Prevention Editorial Board) (2025).Skin Cancer Prevention (PDQ®)–Health Professional Version.That avoiding UV radiation is a modifiable risk factor for skin cancer, supporting sun protection of healing skin after the procedure. — helps the resulting mark fade rather than darken with time.

The Scar You're Left With, and Who Should Consider a Different Method

Electrodesiccation and curettage typically leaves a small, round, slightly indented or pale scar rather than a thin surgical line, because the wound heals by filling in from its base instead of being closed edge to edge. That tradeoff — a faster, stitch-free procedure in exchange for a more visible scar — is the central decision point for choosing this method over a formal excision.

People with a personal history of keloid or raised scarring, or a growth on a cosmetically sensitive area like the central face, often do better discussing alternatives first. For someone who tends to scar this way, a dermatologist may later recommend an intralesional corticosteroid injection into any raised scar tissue that develops, rather than leaving it to flatten on its own.

Body location also matters beyond the face: the lower legs and the area over joints tend to heal more slowly and scar more visibly than the trunk or upper arms, simply because there's more tension on the skin and less blood flow to those areas. A dermatologist weighing where a growth sits, not just what it is, is part of what determines whether this method or an alternative makes more sense.

What It Costs and Whether Insurance Covers It

Whether insurance covers electrodesiccation and curettage depends on why it's being done. Removing a growth that a biopsy identified as a skin cancer, or one that's bleeding, itching, or catching on clothing, is typically billed as a medical procedure. Removing a benign growth purely for appearance is usually classified as cosmetic and billed directly to the patient. It's worth asking the office, before the appointment, how a specific growth will be coded and what that means for the bill.

Basic dermatologic procedure aftercare — the ointment, the bandages, and a follow-up check that the wound is healing and, for any lesion that was cancer, that the margin looks clear — is usually folded into the original charge rather than billed as a separate visit.