If you have noticed a small, soft, dark blue or purple spot on your lip that was not there a few years ago, there is a good chance it is a venous lake. They are harmless, but they tend to catch the light, catch on teeth and, because they sit on the lip, they are hard to ignore in the mirror or in photographs. Many people live with one for years before deciding to have it removed.
This page explains what a venous lake actually is, why it forms, and how we treat it. Venous lake removal at Eve Clinics is done with a long-pulsed Nd:YAG laser, usually in a single short session, and we will always confirm the diagnosis before we treat anything.
Treatment Areas
Treatment Benefits
What Is a Venous Lake?
A venous lake is a small collection of blood sitting in a widened vein, just under the surface of the skin. The medical term is a venous lake of the lip when it appears there, which is where most of them are. It shows up as a soft, slightly raised, dark blue to deep purple spot, usually between 2 and 10 mm across.
The giveaway sign is that it empties when you press on it. Push a clear glass slide or a fingertip against a venous lake and the colour drains away, then refills when you let go. That is because it is simply a pool of venous blood, not a solid growth and not a pigment. It is one of the ways we tell a venous lake apart from other marks on the lip.
Why Do Venous Lakes Form?
The wall of a small vein loses some of its structure over time. Years of sun exposure and normal ageing weaken the elastic tissue that keeps the vessel taut, the vein wall gives a little, and blood pools in the slack section. That pooled blood is what you see through the skin as a blue-purple dome.
This is why venous lakes are far more common after the age of 50 and far more common on the lip, the ears and the face, the parts of us that take the most sun over a lifetime. They are not caused by anything you have done wrong, and they are not a sign of a problem with your veins elsewhere in the body.
Sun Exposure Is the Common Thread
The same ultraviolet damage that thins and weakens the vessel wall also drives skin ageing more broadly. Daily sun protection will not reverse a venous lake that has already formed, but it is sensible for the skin around it and for reducing the chance of new ones.
Is a Venous Lake Dangerous?
A venous lake is benign. It has no potential to turn into anything harmful, and on that count there is nothing to worry about.
The reason we still insist on a proper diagnosis is that a few genuinely serious conditions can look similar to the untrained eye, particularly on the lip. A labial melanotic macule is harmless, but a lip melanoma is not, and early on it can be mistaken for a dark spot. This is not said to alarm you. It is the reason a venous lake should be assessed by a medical clinician who can confirm what it is, using the tell-tale sign that a venous lake blanches under pressure and a pigmented lesion does not. If there is any doubt at all, we will not laser it. We will refer you appropriately.
Get It Checked Before It Is Treated
This is the part that separates a medical clinic from a beauty salon. We are a CQC registered medical provider, so the clinician assessing your lip is qualified to tell a harmless venous lake from something that needs a different route entirely. That assessment is the most important step, and it comes before any talk of treatment.
How We Remove a Venous Lake With Laser
Venous lake removal works by heating the pooled blood and the vessel wall until the vessel collapses and seals shut. We use a long-pulsed Nd:YAG laser at 1064 nm. That wavelength is absorbed strongly by haemoglobin, the pigment in blood, and it reaches deeply enough to treat the whole depth of the lesion rather than just the surface.
In practice, the laser energy is absorbed by the blood inside the venous lake, the heat coagulates the vessel, and the body then clears the treated tissue over the following days and weeks. Because the target is the blood itself, the surrounding lip is largely spared, which is what keeps the scarring risk low.
What to Expect During Treatment
We start by confirming the diagnosis and protecting your eyes. A cooling tip or contact cooling is used to keep the surface comfortable and to protect the skin. Each pulse feels like a brief hot pinprick or a snap. Most people find it very manageable and no local anaesthetic is needed for a small lesion, though we can numb the area if you would prefer.
As the vessel responds you may see the lesion harden and darken, and you might hear a small popping sound. That is expected. A typical venous lake takes only a handful of pulses, so the treatment itself is over in a few minutes, and the whole appointment usually runs 10 to 20 minutes including the assessment.
Recovery and Results
Afterwards the spot usually looks darker, and there is often some bruising along with a little swelling. A small scab or crust can form and should be left to come away on its own. Keep the area clean, avoid picking, and protect it from the sun while it heals.
Recovery varies with the size and depth of the lesion. For some people it settles within a couple of days. For others it takes 4 to 6 weeks for the treated venous lake to fully clear as the body reabsorbs the sealed vessel.
Deep, large or long-standing venous lakes are more likely to need more than one session. We cannot promise complete removal, and we do not offer a warranty or a lifetime guarantee on the result. What we can say honestly is that the feedback from patients we have treated at Eve Clinics has been positive so far.
There are a few effects to be aware of. Occasionally the treated vein collapses and leaves a small indentation in the skin. Changes in skin colour are also possible, either lighter than the surrounding skin or darker. This is uncommon and usually short-lived, though it can sometimes last into the medium or longer term. To reduce that risk we ask you to protect the area with a high SPF for at least 3 months after treatment.
Honest Expectations
Most venous lakes respond well after a single session. Deeper, larger or older ones are more likely to need a second, and we will tell you that plainly at the start rather than surprise you later.
Who Is a Good Candidate?
Most people with a confirmed venous lake are suitable. Laser removal tends to be a good fit if:
- The lesion has been assessed and confirmed as a venous lake
- It bothers you cosmetically, catches on your teeth, or has bled
- You are not currently pregnant
- You can avoid strong sun on the area while it heals
We take extra care with anyone on blood-thinning medication or with a history of cold sores, and we will talk through anything relevant to you at the consultation. If a lesion is very large, or if the diagnosis is not clear-cut, laser may not be the first step and we will say so.
How Laser Compares With Other Options
| Option | How it works | Evidence | Downtime | Scarring risk |
|---|---|---|---|---|
| Long-pulsed Nd:YAG laser | Heats and seals the vessel through the skin | Strong, high single-session clearance in published series | A few days, bruising common | Low |
| Sclerotherapy | An irritant solution is injected to close the vessel | Effective for some lesions, can need repeat sessions | Low to moderate | Low to moderate |
| Cryotherapy | Freezes the lesion | Works but less controlled on the lip | Blistering, longer healing | Moderate, risk of pigment change |
| Electrocautery | Burns the vessel closed | Effective, more surface trauma | Longer healing | Moderate |
| Surgical excision | The lesion is cut out and closed | Definitive for large lesions | Stitches, a week or more | Higher, leaves a scar line |
For a typical venous lake on the lip, laser gives the best balance of a high clearance rate against a low scarring risk, which is why it is our first choice. If your concern is a broader spread of fine surface vessels rather than a single raised lesion, our thread vein removal page may be the better place to start.
The Evidence
Laser treatment of venous lakes is well documented. A published series of long-pulsed Nd:YAG treatment reported complete clearance in 94% of patients after a single session, with no complications recorded [1]. A wider literature review of laser and light-based treatments reached the same broad conclusion, that these lesions respond well and safely to the right wavelength [2]. Comparative work across several laser types found all of them effective for lip vascular lesions, with the choice coming down to lesion size, depth and clinician preference [4].
The evidence on diagnosis is just as relevant. Studies on distinguishing a venous lake from a labial melanotic macule, and both of those from melanoma, are the reason a proper assessment matters before any treatment [3][5].
Who Performs Your Treatment
Venous lake removal is carried out by trained specialists at Eve Clinics. It is a treatment any of our suitably trained clinicians can perform, so being seen does not depend on one person's diary. Every treatment still begins with a medical assessment to confirm the diagnosis before anything is treated.
Why Choose Eve Clinics for Venous Lake Removal in Leamington Spa
We are a CQC registered medical aesthetics clinic based in Leamington Spa, Warwickshire, and we see patients from across Coventry, Kenilworth, Warwick, Solihull, Birmingham and Stratford-upon-Avon.
- A medical clinician confirms the diagnosis before anything is treated
- Treatment with a long-pulsed Nd:YAG laser suited to vascular lesions
- Honest advice on whether laser is right for your lesion, and how many sessions it is likely to take
- No pressure, no packages and no obligation to proceed at consultation
- Remote video consultations available if you would like an initial opinion before booking
You can see our current treatment prices and any special offers on the site, or book a consultation directly.
Frequently Asked Questions
References
- Bekhor PS. Long-pulsed Nd:YAG laser treatment of venous lakes: report of a series of 34 cases. Dermatologic Surgery. 2006;32(9):1151 to 1154.
- Mlacker S, Shah VV, Aldahan AS, et al. Laser and light-based treatments of venous lakes: a literature review. Lasers in Medical Science. 2016;31(7):1511 to 1519.
- Lee JS, Mun JH. Dermoscopy of venous lake on the lips: a comparative study with labial melanotic macule. PLoS One. 2018;13(10):e0206768.
- Aesthetic treatment outcomes of capillary haemangioma, venous lake and venous malformation of the lip using different surgical procedures and laser wavelengths (Nd:YAG, Er,Cr:YSGG, CO2 and diode 980 nm). 2020.
- Tobouti PL, Olegario I, de Sousa SCOM. Benign vascular lesions of the lips: diagnostic approach. Journal of Cutaneous Pathology. 2017;44(5):451 to 455.



