Has your dermatologist recommended Mohs surgery for treating your skin cancer? This highly-specialized surgical technique is something that is often unfamiliar to patients, despite it being the most effective treatment for many common skin cancers.
Keep reading to learn how Mohs surgery works and why it’s considered the most effective treatment for many types of skin cancer!
What Is Mohs Surgery?
Mohs surgery is a precise surgical technique that removes skin cancer layer by layer, with each layer examined under a microscope until all cancer cells are removed. This methodical way of removing tissue allows dermatologists to verify that all cancer cells have been eliminated while preserving as much healthy tissue as possible.
During the procedure, the provider will remove the visible portion of the skin cancer along with a thin layer of surrounding tissue. The removed tissue is then processed, stained, and examined under a microscope while you wait.
If cancer cells remain in the sample, the provider removes another layer of tissue from the specific area where cancer cells were detected. This process continues until no cancer cells remain in the samples.
Why Mohs Surgery Has the Highest Cure Rates
Mohs surgery offers the highest cure rate of all skin cancer treatments because it ensures complete removal of all cancer cells at the time of surgery. The immediate confirmation eliminates the uncertainty that can come with other treatment methods.
The procedure is particularly valuable for treating skin cancers in cosmetically and functionally important areas like the face, hands and feet. By preserving the maximum amount of healthy tissue, Mohs surgery helps maintain both function and appearance.
Renee Lucero, DO, dermatologist and Mohs surgeon at Golden State Dermatology in Carmel, emphasizes the importance of this precise technique:
“Mohs surgery is truly remarkable for its precision and efficiency. The cancer removal, pathology, and often the surgical repair are all performed on the same day. Patients appreciate the reassurance of knowing that, by the time they leave our office, their skin cancer has been completely removed — with maximum preservation of healthy tissue. Because the pathology is performed on-site and in real time, we can ensure the most conservative margins possible. This makes Mohs surgery the gold standard for treating skin cancer, particularly in highly visible areas where minimizing scarring is a priority.”
Who Benefits Most from Mohs Surgery?
Mohs surgery is particularly beneficial for treating basal cell carcinomas and squamous cell carcinomas, the two most common types of skin cancer. Our dermatologists may recommend this procedure for cancers that are likely to recur or have already recurred after previous treatment.
Patients with cancer in areas where preserving healthy tissue is crucial, such as the face, ears, hands, and feet are excellent candidates for this procedure. Mohs surgery is considered the gold standard for treating many types of skin cancer due to its high success rate and tissue-sparing benefits.
What Happens During Mohs Surgery?
Mohs surgery begins with the dermatologist applying local anesthesia to numb the treatment area. This allows the patient to remain awake during the procedure while ensuring they feel no pain.
Once the area is numb, the dermatologist removes the visible cancer along with a thin layer of surrounding tissue. This tissue is then carefully mapped, color-coded, and sent to the on-site laboratory for processing and microscopic examination.
While the patient waits, the removed tissue is processed, stained, and examined under a microscope by the Mohs surgeon. This examination is comprehensive, checking 100% of the surgical margins to determine if any cancer cells remain.
If cancer cells are found in the examined tissue, their precise location is marked on the map, and the surgeon returns to remove another layer of tissue only from that specific area.
The process of removing tissue, mapping, processing, and examining continues until no cancer cells remain. Once all the cancer has been removed, the surgeon discusses reconstruction options with the patient.
Elaine Lim, PA-C, at Golden State Dermatology in Walnut Creek, shares with patients:
“We’re fortunate to have highly skilled Mohs in multiple GSD locations across California. When a biopsy confirms a skin cancer that meets Mohs criteria, I refer my patients with full confidence. While the procedure can take several hours, it’s a precise method that ensures complete cancer removal while preserving healthy tissue. Afterward, the surgeon performs reconstructive repair, and the results I’ve seen have been excellent. I always advise patients to plan for a long day—bring a book or tablet—and to speak up if they feel discomfort, as more local anesthetic can be added. Educating patients ahead of time helps ease anxiety and makes the experience much smoother.”
Recovery After Mohs Surgery
Recovery after Mohs surgery varies depending on the size and location of the treatment area. Most patients experience minimal discomfort that can be managed with over-the-counter pain relievers.
Our dermatologists provide detailed instructions to promote healing and minimize scarring during your healing. These instructions typically include wound care guidelines, activity restrictions, and signs of complications to watch for.
Preparing for Your Mohs Surgery Appointment
Before your appointment, our dermatologists will provide specific instructions to help you prepare. These may include stopping certain medications that can increase bleeding, such as aspirin or blood thinners, after consulting with your primary care physician.
Wearing comfortable clothing and bringing entertainment for the waiting periods can make your experience more pleasant. Many patients also find it helpful to arrange for someone to drive them home after the procedure, especially if the surgery is on the face.
Why Choose the Center for Dermatology and Laser Surgery for Mohs Surgery
At the Center for Dermatology and Laser Surgery, our dermatologists have extensive training and experience in performing Mohs surgery. We use state-of-the-art equipment and techniques to ensure the best possible outcomes. Our compassionate team provides personalized care throughout the entire process, from diagnosis to recovery. We understand that a skin cancer diagnosis can be stressful, and we’re committed to making your experience as comfortable as possible.
Schedule Your Consultation Today
Regular skin checks and prompt treatment of suspicious lesions provide the best chance for a complete cure. Taking a proactive approach to skin health can help you maintain healthy skin throughout your life.
If you have questions about your skin, schedule an appointment at Center for Dermatology and Laser Surgery today!
