ED&C stands for electrodesiccation and curettage, a common in-office procedure dermatologists use to remove superficial skin cancers and precancerous growths. It combines physical scraping with an electrical current to destroy abnormal tissue, and it’s one of the quickest, most straightforward ways to treat low-risk basal cell carcinoma and squamous cell carcinoma.
How the Procedure Works
ED&C is a two-step process repeated in cycles. First, your dermatologist numbs the area with a local anesthetic. Then they use a curette, a small oval instrument with a sharp looped edge, to scrape away the abnormal tissue. The curette works partly by feel: cancerous skin is softer than healthy skin, so the dermatologist can distinguish tumor from the firm, gritty texture of normal tissue as they scrape.
After the scraping, the dermatologist applies an electric needle or probe to the base and edges of the wound. This step, the electrodesiccation, does two things: it destroys any remaining cancer cells at the margins and it cauterizes small blood vessels to control bleeding. The entire scrape-then-burn sequence is typically repeated two to three times in a single session to improve the chances of clearing all abnormal cells.
The whole appointment is usually short compared to surgical alternatives. You’re awake the entire time, and the local anesthetic keeps the area numb throughout.
What ED&C Treats
ED&C works best on superficial skin cancers, meaning tumors confined to the top layer of skin. The most common targets are low-risk basal cell carcinomas and squamous cell carcinomas, along with some precancerous lesions like actinic keratoses. For appropriately selected tumors, five-year cure rates reach about 96%, which is comparable to more involved surgical methods.
The key phrase is “appropriately selected.” ED&C is not a good fit for every skin cancer. It’s generally reserved for tumors that are small, well-defined, and located in low-risk areas. Tumors on the nose, ears, lips, or around the eyes are typically treated with other methods because the anatomy is complex and the cosmetic stakes are higher. Aggressive tumor subtypes, deeply invasive cancers, and recurrent tumors that have come back after previous treatment are also poor candidates.
ED&C Compared to Mohs Surgery
The biggest difference between ED&C and Mohs micrographic surgery comes down to precision. During Mohs, a surgeon removes tissue in thin layers and examines each one under a microscope before deciding whether to take more. This means the lab can confirm that every cancer cell has been removed. With ED&C, there’s no laboratory confirmation that the margins are clear. The dermatologist relies on the tactile difference between soft tumor and firm healthy skin, which works well for superficial cancers but leaves more uncertainty with complex ones.
Mohs is the gold standard for high-risk tumors, recurrences, and cancers in cosmetically sensitive areas. But it also takes significantly longer. A Mohs appointment can last most of the day because each tissue layer needs to be processed and read. ED&C, by contrast, is typically done in minutes. For a straightforward, low-risk skin cancer on the trunk or an extremity, ED&C offers a fast, effective option without the time commitment or cost of Mohs.
What the Wound Looks Like and How It Heals
ED&C leaves an open wound that heals from the bottom up, similar to a deep scrape. There are no stitches. Healing typically takes two to three months, and wounds on the legs often take even longer because circulation is slower in the lower extremities.
Daily wound care is simple but important. After the first 24 hours, you remove the bandage and gently wash the area with a mild, unscented soap and warm water, cleaning off any crust or old ointment. Then you apply a thin layer of plain petroleum jelly (like Vaseline) or a similar healing ointment and cover it with a fresh bandage. You repeat this every day until the wound closes.
A few things to avoid during healing:
- Antibiotic ointments like Neosporin or triple antibiotic cream, which can cause skin irritation at the wound site
- Hydrogen peroxide or rubbing alcohol, both of which damage healing tissue
- Leaving the wound uncovered or letting a hard scab form, which slows healing and increases scarring
- Pools, hot tubs, and saunas until the wound is fully closed
- Vitamin E, aloe vera, or hydrocortisone on the wound
Scarring and Long-Term Appearance
ED&C does leave a scar. The typical result is a round or oval, slightly depressed, lighter-colored patch of skin. Because the wound heals without stitches, the final scar tends to be wider and flatter than a surgical scar from an excision. On darker skin tones, the area may lose pigment permanently, creating a noticeable pale spot.
The cosmetic outcome depends heavily on where the procedure is done. Scars on the back or chest are usually easy to live with. Scars on the face, neck, or hands are more visible, which is one reason dermatologists often recommend excision or Mohs for cancers in those areas. Some patients develop slightly raised or thickened scars, though studies suggest that using curettage alone (without the electrodesiccation step) may reduce the risk of hypertrophic scarring in certain cases. Sun protection over the healed area helps prevent the scar from darkening or becoming more noticeable over time.
Why Dermatologists Still Choose ED&C
Despite the availability of more precise techniques, ED&C remains a first-line option for low-risk skin cancers because it hits a practical sweet spot. It’s fast, it’s effective, it can be done in nearly any dermatology office without specialized lab support, and it costs less than surgical alternatives. For a small, superficial basal cell carcinoma on the back or arm, a 96% five-year cure rate with a brief office visit is a strong outcome. The procedure has also shown good results for carefully selected squamous cell carcinomas, with high patient satisfaction rates.
The limitation is that it relies on the dermatologist’s skill and judgment rather than microscopic confirmation. That makes patient selection critical. When ED&C is used on the right tumors in the right locations, it performs remarkably well. When it’s used on tumors that are too aggressive, too deep, or in high-risk zones, recurrence rates climb. The procedure works best as part of a careful conversation between you and your dermatologist about the specific characteristics of your tumor and what treatment makes the most sense for its size, location, and type.