Surgical removal of abnormal skin growths is one of the most common procedures performed by dermatologists and surgeons. This treatment involves cutting away cancerous or suspicious lesions along with a surrounding border of healthy tissue to ensure complete removal and prevent recurrence.
Understanding Skin Neoplasm Excision
Skin neoplasm excision is a surgical procedure designed to remove abnormal growths from the skin. The term excision refers to the complete surgical removal of tissue using a scalpel, laser, or other cutting instruments. When doctors perform this procedure, they don’t just remove the visible problem area—they also take out a margin of normal-appearing skin around it. This border, called a margin, helps ensure that all potentially problematic cells are eliminated, even those that may have spread slightly beyond what’s visible to the eye.[1][2]
The procedure is commonly used to treat various skin concerns, including skin cancers such as basal cell carcinoma, squamous cell carcinoma, and melanoma. These are types of skin cancer that develop when skin cells grow abnormally. Beyond cancerous lesions, excision is also performed to remove benign growths like moles, cysts, and other abnormal skin areas that may be causing discomfort or cosmetic concerns.[1][3]
Most excision procedures are performed in a doctor’s office or outpatient setting, meaning patients can go home the same day. The removed tissue is typically sent to a laboratory where a specialist called a pathologist examines it under a microscope. This examination confirms whether the growth was cancerous and, importantly, whether the margins were clear—meaning all abnormal cells were successfully removed.[1][4]
The Procedure: What Happens During Excision
Understanding what happens during an excision procedure can help reduce anxiety. Before the surgery begins, the area to be removed is typically marked with a surgical marker. The doctor outlines the lesion itself and the margin of healthy tissue that needs to be removed. For skin cancers, this margin usually measures between 2 to 4 millimeters beyond the visible tumor, though this can vary depending on the type and aggressiveness of the cancer.[4][9]
The next step involves numbing the area with local anesthesia, a medication injected into and around the treatment site. This ensures you won’t feel pain during the procedure, though you may experience slight pressure or a scraping sensation as the doctor works. The numbing medication typically takes effect quickly, and the area remains completely numb throughout the surgery.[1][4]
Once the area is numb, the surgeon uses a scalpel to cut around and underneath the lesion. The incision is usually made in an elliptical or football shape rather than a circle. This shape makes it easier to close the wound with stitches and helps the scar lie flat, reducing puckering or “dog ears” at the ends. The elliptical shape also means the final scar is typically three to four times longer than the diameter of the original lesion being removed.[4][15]
During the removal process, some minor bleeding may occur. If this happens, the physician may use cautery—a tool that uses heat or electrical current to seal blood vessels and stop bleeding. Although you might hear the buzz of the cautery device, the area remains numb, so you shouldn’t feel discomfort. If you do experience any pain, your doctor can quickly administer additional anesthesia.[4]
After the lesion is completely removed, the wound needs to be closed. For most excisions, this involves stitching the skin back together in layers. The deeper layer uses absorbable sutures that will dissolve on their own over time. The superficial layer, or top layer, typically uses non-absorbable stitches that need to be removed during a follow-up visit. The timing for stitch removal varies by body location—facial stitches are usually removed within one week, while stitches on other body areas typically stay in for about two weeks.[4][9]
For larger lesions or melanomas, the procedure may require more extensive surgery. Some patients might need general anesthesia, which means you’ll be asleep during the procedure. In cases where a large area of skin must be removed, a skin graft may be necessary. A skin graft involves taking healthy skin from another part of your body and using it to cover the area where the cancer was removed.[1][10]
Recovery and Aftercare
Recovery after skin neoplasm excision depends on several factors, including the size of the removed area, its location on the body, and whether additional procedures like skin grafting were needed. Understanding what to expect during healing can help you take proper care of the wound and recognize any potential problems early.
The local anesthetic used during the procedure typically begins to wear off within one to two hours after surgery. Once the numbing effect fades, you may feel tenderness around the surgical site. For most people, any discomfort is manageable with over-the-counter pain medications like acetaminophen (Tylenol). Your doctor will provide specific recommendations about which pain medications are appropriate for you.[4][9]
Immediately after surgery, the wound will be covered with a bandage or dressing. Your doctor will give you specific instructions about caring for this dressing, but general guidelines typically include keeping it dry for the first 24 to 48 hours. After this initial period, you can usually begin gently washing the area with clean, soapy water and patting it dry. It’s important to avoid harsh cleansers, hydrogen peroxide, or alcohol, as these can damage healing tissue and slow the recovery process.[9][12]
The healing timeline varies based on the extent of surgery. Most excision wounds heal within one to three weeks following the procedure. However, if a skin graft or flap was required to close the wound, the healing process may take up to two months. During this time, it’s common for the area to appear slightly pink, tender, and swollen. These are normal signs of healing, but moderate or severe redness, tenderness, or swelling should prompt a call to your doctor, as these could indicate infection or other complications.[2][7]
Many doctors recommend applying petroleum jelly or an antibiotic ointment to the wound after cleaning. This helps keep the area moist and promotes healing. If you need to replace the bandage, use a clean, new one each time. Protecting the healing wound from sun exposure is also crucial, as newly healed skin can be more sensitive to sunlight and may scar more noticeably if exposed.[12]
Physical activity restrictions depend on the location of the excision. If you had surgery on a limb or an area that moves frequently, your doctor might recommend limiting strenuous exercise that could stretch the wound and potentially cause the stitches to pull apart. For skin grafts, avoiding exercise that stretches the grafted area is particularly important for at least three weeks after surgery.[19]
Understanding Results and Follow-Up
Approximately one week after your excision, you should receive a phone call from your doctor’s office with the pathology results. In most cases, this call brings good news—the margins were clear, meaning no abnormal cells were found at the edges of the removed tissue, and no further treatment is needed. Clear margins indicate that the entire lesion was successfully removed during the procedure.[4]
However, in some situations, the pathology report may show that abnormal or cancerous cells extend to the edges of the removed tissue. This means some problematic cells may still remain in your skin. When this occurs, you’ll need to return to your doctor’s office for another excision to remove any remaining abnormal tissue. The margins are sized carefully to make this additional surgery rarely necessary, but it can happen.[4][9]
The pathologist’s examination serves multiple purposes beyond checking the margins. It confirms the exact type of growth that was removed and provides detailed information about its characteristics. For cancerous lesions, this information helps determine whether any additional treatment might be needed and guides future monitoring plans.[1][3]
Effectiveness and Cure Rates
Surgical excision is highly effective for treating skin cancers, with success rates varying depending on the type of cancer. For basal cell carcinoma and squamous cell carcinoma—the two most common types of skin cancer—excision with appropriate margins results in cure rates of approximately 95%. This means that for the vast majority of patients, a single excision procedure successfully removes all the cancer.[4][9]
For melanoma, the effectiveness of excision depends on several factors, including how thick the melanoma is and whether it has spread beyond the skin. Most patients with thin melanomas can be cured with a surgical excision. The procedure is often the primary treatment for melanoma diagnosed through a skin biopsy.[12][13]
When compared to other skin cancer treatments, excision offers several advantages. It provides lower recurrence rates than some alternative treatments and allows for complete pathological examination of the removed tissue. However, for certain high-risk cancers or cancers in cosmetically sensitive areas like the face, a specialized technique called Mohs surgery may be recommended instead. Mohs surgery examines 100% of the tissue margins during the procedure and offers cure rates up to 99% for basal cell and squamous cell carcinomas.[4][11]
Scarring and Cosmetic Outcomes
All surgical procedures that involve cutting the skin will leave a scar. After excision, you will likely have a scar approximately the size of the incision. The appearance of scars varies from person to person and depends on factors including the location of the excision, the size of the area removed, your age, and your individual healing characteristics.[2][7]
Initially, the surgical site may appear red and inflamed. This is a normal part of the healing process. Over time—typically up to a month or longer—the redness should gradually fade. The scar will continue to mature and improve in appearance for several months after surgery. While the scar may never completely disappear, most scars fade significantly with time and become much less noticeable.[8][12]
Surgeons prioritize aesthetic outcomes by using careful surgical techniques. The elliptical shape of the incision, proper placement along natural skin lines when possible, and meticulous closure with sutures all contribute to minimizing scarring. Before your procedure, you should discuss with your doctor what the scar might look like and ask about specific aftercare steps you can take to optimize the cosmetic result.[2][7]
When to Choose Excision Over Other Treatments
Not all skin lesions are treated the same way. Doctors consider multiple factors when deciding whether excision is the best treatment option. For melanoma and suspicious moles (nevi), surgical excision is generally preferred over other methods. This is because the type of cells that make up melanomas—called melanocytes—are better examined using the permanent sections created from excision tissue rather than the frozen sections used in some other procedures.[15]
Excision is also commonly chosen for skin cancers located on areas of the body such as the arms, legs, or trunk, where preserving every millimeter of healthy tissue is less critical than it might be on the face. For facial skin cancers or particularly aggressive cancers, Mohs surgery might be recommended instead because it allows for more precise removal with better preservation of healthy tissue.[4][9]
Another advantage of standard excision compared to Mohs surgery is time. Excision procedures are typically faster, and patients don’t need to wait in the office while tissue is examined, as happens with Mohs surgery. If a sufficient margin of healthy-appearing tissue is removed, the cure rate is comparable to Mohs surgery for many types of skin cancer.[4][9]
Potential Complications and Risks
While skin neoplasm excision is generally a safe procedure, like all surgeries, it carries some potential risks and complications. Understanding these possibilities helps you make informed decisions about your care and recognize problems early if they occur.
Bleeding or swelling at the surgical site can occur after the procedure. While some minor bleeding during or immediately after surgery is normal and easily controlled with cautery, excessive bleeding afterward should be reported to your doctor. Similarly, while some swelling is expected as part of healing, significant or worsening swelling may indicate a problem.[8][12]
Infection is always a risk with any surgical wound. Signs of infection include increased pain, warmth, redness spreading beyond the immediate surgical area, red streaks leading from the wound, pus draining from the site, or fever. If you develop any of these symptoms, contact your doctor immediately. Proper wound care significantly reduces infection risk.[8][14]
Nerve damage is a potential complication, particularly if the excision is in an area with important nerves nearby. This could result in temporary or, rarely, permanent numbness or altered sensation in the area. Your surgeon will discuss this risk with you before the procedure if it’s a significant concern for your specific case.[8]
In some cases, the incision may open after surgery, especially if it’s subjected to too much tension or movement. This is why doctors often provide specific activity restrictions during the healing period. If your wound does open, contact your doctor for guidance on how to proceed.[8]
Life After Excision: Long-Term Considerations
Successfully removing a skin cancer or suspicious lesion is an important achievement, but it’s not necessarily the end of your skin health journey. People who have had one skin cancer removed are at increased risk for developing additional skin cancers in the future. For those who have had basal cell carcinoma or squamous cell carcinoma removed, the risk of developing another skin cancer is about ten times higher than for people who have never had skin cancer.[26]
This increased risk makes regular follow-up care essential. After your excision heals, you’ll need to schedule regular skin examinations with your dermatologist. The frequency of these check-ups depends on various factors, including the type of cancer you had, how many skin cancers you’ve had, and your individual risk factors. For some patients, examinations every three to six months may be recommended initially, with the frequency potentially decreasing over time if no new problems develop.[22]
Beyond professional monitoring, performing regular self-examinations of your skin is crucial. Look for new growths, moles that change in size, shape, or color, sores that don’t heal, or any other unusual changes. Being familiar with your skin’s normal appearance makes it easier to spot potential problems early, when they’re most treatable.[14]