Mohs Surgery | The Office of Dr. Vincent Hung
If you’ve undergone Mohs surgery, it is natural to wonder whether skin cancer has the potential to return. While Mohs surgery is one of the most effective treatments available for the complete removal of many basal cell carcinomas and squamous cell carcinomas, there are certain factors that contribute to cancer recurrence following surgery. This blog will discuss the conditions in which skin cancer can return after treatment and how to best protect your skin moving forward.
6 Min Read:
Table of Contents
- Why Skin Cancer Can Come Back After Mohs Surgery
- Signs That Skin Cancer May Have Returned
- How Mohs Surgery Helps Reduce Recurrence Risk
- What Recurrence Means for Mohs Surgery Patients
- Is It Recurrence or a New Skin Cancer?
- Follow-Up Care and Lowering Recurrence Risk After Mohs Surgery
- Why Reconstruction Still Matters When Recurrence Is a Concern
- Why Choose Dr. Vincent Hung for Your Mohs Procedure and Reconstruction in Pasadena
- FAQ About Skin Cancer Recurrence After Mohs Surgery
Why Skin Cancer Can Come Back After Mohs Surgery
Generally, skin cancer can return after treatment if:
- Cancer cells remain
- The original tumor has aggressive features
- A patient develops a new skin cancer in the same general area
Mohs surgery lowers this risk by allowing the surgeon to examine the tissue margins during the procedure rather than estimating where the cancer ends. This approach is more comprehensive, as Dr. Hung can ensure all the cancer is gone and reduce the need for additional treatment or surgery.
Still, no skin cancer treatment can guarantee that cancer will never return. Recurrence risk can vary based on:
- The type of skin cancer
- Tumor size
- Tumor depth
- Location
- Immune status
- Prior treatment history
- Whether the cancer has aggressive, microscopic features
Signs That Skin Cancer May Have Returned
You should contact Dr. Hung or your dermatologist if you notice changes at or near your previous treatment site.
Possible warning signs may include:
- A new bump, patch, or sore near the scar
- Bleeding, crusting, or repeated scabbing
- A wound that does not heal
- Increasing tenderness, itching, or irritation
- A scar that changes in shape, color, or texture
- A spot that looks different from the rest of your skin
Patients are encouraged to perform regular skin self-exams to monitor possible risks, especially for people with a personal or family history of skin cancer.
How Mohs Surgery Helps Reduce Recurrence Risk
Unlike standard excision surgery, Mohs surgery removes and examines the affected tissue in stages during the same appointment. If cancer cells remain, another thin layer is removed only from the affected area. The tissue is then mapped, analyzed, and removed in repeated stages until the tumor and any remaining cancer cells are completely removed.
This precision is one reason Mohs surgery is often recommended for skin cancers that:
- Are on the face, nose, lips, ears, eyelids, scalp, hands, or other delicate areas
- Have come back after previous treatment
- Have a higher risk of recurrence
- Have unclear borders
- Are large, deep, or aggressive
- Require healthy tissue preservation for cosmetic or functional reasons
What Recurrence Means for Mohs Surgery Patients
When patients hear that Mohs surgery has a high cure rate, it can be easy to assume recurrence is impossible. It’s important to keep in mind that this idea is not entirely accurate. A high cure rate means most patients do not experience recurrence, but some still can.
For you as a patient, the key takeaway is simple: Mohs surgery offers strong cancer control for many cases, but your personal risk depends on your skin cancer diagnosis. During consultation, Dr. Hung can evaluate your skin cancer type, location, biopsy results, and treatment history to explain what recurrence risk may mean in your specific situation.
Is It Recurrence or a New Skin Cancer?
Not every suspicious spot after Mohs surgery means the same cancer has returned. Some patients develop a true recurrence at or near the treated site. Others develop a new skin cancer because their skin has already shown vulnerability to sun damage or other risk factors.
For instance, basal cell carcinoma is one such cancer that has the potential to return. Being diagnosed with this or other skin cancers increases your risk of developing another form, including melanoma.
Either way, any new or concerning developments should be evaluated promptly. If you notice a changing lesion, a sore that does not heal, bleeding, crusting, tenderness, or a new growth near the treated area, schedule an exam instead of waiting.
Follow-Up Care and Lowering Recurrence Risk After Mohs Surgery
You cannot control every risk factor for recurrence, but you can take steps to protect your skin after treatment. Regular follow-up visits, self-exams, and sun protection can help you catch concerning changes earlier. Patients are asked to follow up for several weeks after surgery so Dr. Hung can ensure wounds are healing properly.
Your surgeon or dermatologist can recommend how often you’ll need a skin exam based on individual risk factors, including skin type, sun exposure history, and family history. Patients diagnosed with basal cell carcinoma should have annual checks for recurrence or other new primary skin cancers.
Your follow-up schedule may be more frequent if you have had:
- Multiple skin cancers
- An aggressive tumor
- A recurrent tumor
- Extensive sun damage
- A weakened immune system
You should also follow your post-operative instructions carefully. Swelling and bruising may occur after Mohs surgery, typically subsiding over the next several weeks. It’s also important to avoid strenuous activity for up to three weeks or until cleared by Dr. Hung.
Why Reconstruction Still Matters When Recurrence Is a Concern
When skin cancer has a risk of recurrence, the priority is complete removal. However, reconstruction still plays an important role in your overall treatment plan, especially when cancerous tissue affects the face, nose, lips, ears, eyelids, scalp, or another visible or delicate area.
Mohs surgery removes cancerous cells while sparing healthy tissue and leaving the smallest possible scar. This tissue-sparing approach can be especially valuable if the cancer is recurrent, aggressive, or located in an area where future treatment may be needed.
Dr. Hung offers advanced reconstructive options, including direct closure, skin grafts, and more. Thoughtful reconstruction helps restore the surgical site after cancer removal while protecting appearance and function.
Why Choose Dr. Vincent Hung for Your Mohs Procedure and Reconstruction in Pasadena
As a triple board-certified plastic and reconstruction surgeon in Internal Medicine, Dermatology, and Plastic Surgery, Dr. Vincent Hung is a leading expert in Mohs surgery and reconstructive procedures. He approaches each patient with compassion, attention to detail, and a commitment to safety, providing comprehensive skin cancer treatment while meeting the patient’s needs.
Having completed a fellowship in “Mohs micrographic surgery,” he has unique, intricate knowledge of skin cancer removal and reconstruction that sets him apart. For patients concerned about skin cancer recurrence after their Mohs surgery, Dr. Hung’s practice is centered around open communication from consultation through recovery. Under his care, you can feel both informed and prepared on what to expect.
FAQ About Skin Cancer Recurrence After Mohs Surgery
Can skin cancer come back after Mohs surgery?
Skin cancer can come back after Mohs surgery, but recurrence is uncommon compared with many other treatment methods. Dr. Hung will communicate your risk for recurrence based on your cancer type, prior cancer history, and other factors that will be discussed during your consultation.
How do I know if my skin cancer has returned?
You may notice a new bump, sore, crusting, bleeding, tenderness, or a changing area near the surgical scar. If that’s the case, it’s important to see Dr. Hung or your dermatologist for evaluation.
Does a new spot mean the original cancer came back?
Not always. A new spot may be a recurrence or a new skin cancer. Once you have had skin cancer, you may be at greater risk of developing another skin cancer.
How often should I have skin checks after Mohs surgery?
Your follow-up schedule should be based on your personal risk factors. For example, patients diagnosed with basal cell carcinoma should have annual follow-ups to monitor for recurrence or new primary skin cancers.
What should I do if I am worried about recurrence?
Schedule an evaluation. During your consultation, Dr. Hung evaluates your case, discusses his findings, and recommends treatment tailored to your individual needs.
Schedule a Mohs Surgery Consultation in Pasadena, CA
Even if you’ve undergone Mohs surgery, the idea of skin cancer recurrence is an intimidating thought that you do not have to navigate alone. If you are worried about skin cancer recurrence after Mohs surgery, or if you have a new or changing spot near a previous treatment site, do not wait to have it evaluated. Early diagnosis and appropriate treatment can help protect your health, preserve healthy tissue, and support a more confident recovery.
To schedule your personalized consultation in Pasadena, CA, today, call Dr. Hung’s office at (626) 432-5032 or fill out our online contact form.
