Free Online Assessment
CALL US
WHATSAPP
Most mole removals are permanent, but regrowth occurs when cells remain beneath the skin. Surgical excision has lower recurrence rates than shave removal. Returning moles are usually benign but should be monitored.
- Dr Sharon Crichlow
- Reading Time: 10 Mins
Having a mole removed can bring relief, but many patients wonder if their mole might return. While most mole removals are permanent, some people notice regrowth months later. This happens when mole cells remain beneath the skin after treatment. Let’s explore why moles sometimes reappear, how different removal techniques affect regrowth rates, and what you should do if you notice a mole coming back.
Key Takeaways
- Most mole removals are permanent, but regrowth occurs in 11-30% of shave removals when cells remain beneath the skin.
- Surgical excision offers the lowest recurrence rate (<1%) compared to other removal techniques.
- Regrown moles are typically benign but should be monitored for changes in appearance using the ABCDE rule.
Table of Contents
Do Moles Grow Back After Removal?
The simple answer is: sometimes they do. Most mole removals result in permanent elimination when performed correctly. However, research shows that regrowth can occur in certain cases.
Recent studies indicate that mole regrowth rates vary significantly depending on the removal method used. According to a 2021 study published in Dermatologic Surgery, approximately 11.7% of moles returned after shave excision, while virtually none returned after full-thickness elliptical excision.
What’s particularly interesting is that most regrowth (about 94.1%) becomes visible within the first three months after treatment. This isn’t because a new mole is forming, but rather because some mole cells remained under the skin after the procedure.
Why Do Some Moles Return After Removal?
Mole regrowth isn’t random or mysterious. The technique used significantly impacts the likelihood of recurrence.
Studies show that incomplete excision is fairly common in clinical practice. Research published in Acta Dermato-Venereologica (2021) found that about 1 in 10 melanocytic lesions (9.7%) are incompletely excised in routine procedures, which can lead to regrowth.
Different removal methods have varying success rates:
- Shave Removal: This quicker, less invasive technique removes the visible portion of the mole but doesn’t always eliminate deeper cells. Research shows that shave removal has a recurrence rate of approximately 11.7%, with some studies reporting rates as high as 20-30% at 6-12 months.
- Surgical Excision: Full-thickness elliptical excision removes both the visible mole and a margin of surrounding tissue, extending deeper into the skin. This method has a significantly lower recurrence rate when histology confirms clear margins.
- Laser Removal: Laser treatments can be effective for flat moles and may offer good cosmetic results. Their effectiveness depends on the laser type, settings used, and the depth of the mole cells.
- Cryotherapy: Freezing moles requires adequate freezing time (up to 30 seconds) for the temperature to penetrate the entire lesion. Insufficient freezing time increases regrowth risk.
The skill of the practitioner also plays a vital role. Sometimes, treatment is intentionally less aggressive to minimise scarring or reduce pain, particularly in cosmetically sensitive areas like the face.
| Removal Method | Average Recurrence Rate | Typical Recovery Time | Best For |
|---|---|---|---|
| Shave Removal | 11.7–30% | 1–2 weeks | Raised moles, quick procedures |
| Surgical Excision | <1% with clear margins | 2–3 weeks | Suspicious moles, complete removal |
| Laser Removal | Varies based on type | 1–2 weeks | Flat, superficial moles |
| Cryotherapy | Varies based on duration | 1–3 weeks | Small, superficial lesions |
Can Regrown Moles Be Harmful?
The good news is that regrown moles are typically benign. The process of a mole returning after treatment doesn’t transform it into skin cancer.
However, it’s still important to monitor any regrown mole for changes. This is particularly crucial if the original mole was removed because it looked suspicious. In such cases, medical professionals often recommend re-excision with wider margins.
What should you watch for? Remember the ABCDE rule for suspicious moles:
- Asymmetry: One half of the mole doesn’t match the other.
- Border: Edges are uneven, ragged, notched or blurred.
- Colour: Multiple colours or uneven shading within the same mole.
- Diameter: Larger than 6mm (pencil eraser size) or growing larger.
- Evolution: Any change in size, shape, colour, or symptoms like bleeding or itching.
Any regrown mole displaying these characteristics warrants prompt medical attention.
For peace of mind, our professional mole removal service includes a thorough assessment before removal and proper histological testing afterwards when indicated. We believe in taking every precaution to ensure your skin’s health and your complete satisfaction with the procedure.
How to Prevent Mole Regrowth
The best way to prevent mole regrowth starts with selecting a qualified practitioner with specific experience in mole removal. Their expertise ensures the procedure is performed with the precision needed for complete removal.
Proper removal technique plays a crucial role. A skilled clinician will ensure adequate margins are taken to remove all mole cells, particularly with suspicious moles.
Following proper wound care practices after your procedure significantly improves healing and reduces the risk of regrowth. This typically includes:
| Aftercare Step | Purpose | Duration |
|---|---|---|
| Keeping the area clean | Prevents infection | Until fully healed |
| Avoiding sun exposure | Prevents hyperpigmentation | 4–6 weeks minimum |
| Applying recommended ointments | Promotes healing | As directed by clinician |
| Avoiding picking at scabs | Prevents scarring | Until fully healed |
DIY removal attempts should always be avoided. These methods not only increase the risk of regrowth but can also lead to infections, excessive scarring, and missed diagnosis of potentially serious skin conditions.
When to See a Doctor About a Regrown Mole
If you notice a mole returning after removal, don’t panic, but do pay attention.
UK guidelines recommend urgent assessment of concerning or changing moles through the suspected cancer pathway, which includes a 14-day referral standard. This ensures timely evaluation of potentially problematic lesions.
Regular monitoring of your skin is essential, especially after mole removal. Our mole checking service provides professional assessment of any concerning skin lesions. Early detection of problematic changes gives you the best options for treatment and peace of mind.
Conclusion
Regular skin checks remain your best defence against potentially concerning changes. If you’re worried about a mole that’s returned after removal or you’re considering having a mole removed, book your free online assessment with our skin specialists today. Early consultation leads to better outcomes and greater peace of mind.
FAQs
Why does a mole sometimes return?
A mole returns when the removal procedure doesn’t eliminate all mole cells. These remaining cells continue to produce pigment, causing the mole to reappear. This happens more frequently with shave removals that prioritise minimal scarring over complete removal.
Does laser mole removal prevent regrowth?
Laser removal can be effective for certain types of moles, particularly flat ones. However, its effectiveness varies based on the mole’s characteristics and the specific laser technology used. Multiple sessions may be required for complete removal, and some deeper moles might not respond well to laser treatment.
How can I tell if a regrown mole is safe?
Most regrown moles are benign, but you should monitor for changes using the ABCDE rule: Asymmetry, Border irregularity, Colour changes, Diameter increases, and Evolution or changes over time. If you notice any of these changes, seek medical evaluation.
Should I get a recurring mole checked by a doctor?
Yes, recurring moles should be evaluated by a doctor, especially if they show changes in appearance or cause symptoms like bleeding, itching, or pain. While most regrowth is harmless, professional assessment provides valuable reassurance and catches any problems early.
About the Author
