If you’ve spotted a small lump forming along a spider vein, it can be both concerning and uncomfortable. While spider veins are usually a cosmetic concern, a lump may signal a related issue, such as trapped blood or a deeper reticular vein. Fortunately, effective, minimally invasive treatment is available.
At True Jewel Cosmetic Center, we use Asclera® sclerotherapy to treat spider veins and reticular veins safely and with high patient satisfaction. In this blog, we’ll explain what causes lumpy spider veins, why it happens, and how sclerotherapy can help you achieve smoother, healthier-looking skin.
What Does a Lump in a Spider Vein Mean?
Spider veins are small, thread-like blood vessels that appear near the skin’s surface, often red, blue, or purple in color. A small lump along one of these veins could be due to:
Trapped blood: After treatment or due to poor blood flow, small clots of blood can become trapped in the closed vein. This is common during the healing phase and typically resolves on its own over time.
Reticular veins: These are slightly larger veins, often located deeper under the skin. If they feed into spider veins, you may notice mild swelling or a lump due to increased pressure in the area.
Inflammation (phlebitis): In some cases, vein walls may become inflamed, leading to tenderness or lumpiness. This is more common after treatment or with larger reticular veins.
A lump doesn’t always mean there’s a problem, but it’s still important to have it assessed by a qualified provider—especially if there’s pain, redness, or warmth in the area.
What Are Spider and Reticular Veins?
Spider veins are small, thin blood vessels that lie close to the surface of the skin. They often look like a web or series of branches and are commonly found on the legs or face. These veins are usually not raised and don’t bulge.
Reticular veins, sometimes called feeder veins, are blue or green veins that sit slightly deeper under the skin and may connect to clusters of spider veins. They are larger than spider veins but smaller than varicose veins and can cause mild pressure, aching, or lumping in some cases.
Why Do These Veins Appear?
There are several causes of spider and reticular veins, including:
- Heredity or family history of vein conditions
- Hormonal changes (such as pregnancy, birth control, or menopause)
- Prolonged sitting or standing
- Aging and natural weakening of the vein walls
- Excess weight
- Skin injury or sun damage
In women, hormones and pregnancy-related pressure changes often play a major role. Men can also develop spider and reticular veins due to physical strain, circulation problems, or genetic factors.
How Sclerotherapy Treats Lumpy Spider Veins
At True Jewel Cosmetic Center, we treat spider and reticular veins using Asclera®, an injectable medication specifically formulated for sclerotherapy.
Sclerotherapy works by injecting a solution directly into the affected vein. The solution irritates the vein lining, causing it to collapse and seal shut. Over time, your body naturally reabsorbs the vein, and blood reroutes to healthier vessels nearby.
Why Asclera?
Asclera (polidocanol) is widely considered one of the most reliable agents for vein treatment. Studies show that:
- Over 87% of patients report high satisfaction
- 75–90% of spider veins are completely removed after treatment
- It causes fewer side effects compared to older solutions like STS (sodium tetradecyl sulfate)
Even if a spider vein has a lump or is connected to a feeder vein, Asclera works to collapse the vessel and support proper healing.
What to Expect During Your Sclerotherapy Treatment
Initial Consultation
Before your treatment, our team will examine your veins and discuss any symptoms you’re experiencing. If needed, we may use imaging to confirm the presence of reticular veins.
During the Procedure
The injection process is relatively quick and performed in-office.
- The treatment area is cleaned
- Asclera is injected with a fine needle into the vein
- You may feel a mild stinging sensation during the injection
- The vein begins collapsing immediately
Each session lasts 15 to 45 minutes, depending on how many veins are being treated. Most patients need multiple sessions spaced about two weeks apart.
Recovery and Aftercare
After treatment, compression and movement are key to promoting healing and minimizing risks.
Compression Guidelines
- Wear compression stockings continuously for 2–3 days for spider veins
- For reticular veins, wear compression for 5–7 days
- Compression reduces the risk of deep vein thrombosis and supports proper vein closure
Walking and Physical Activity
- Walk for 15–20 minutes immediately after your appointment
- Continue walking daily for at least one week
- Avoid long periods of sitting or standing
- Do not fly or sit for long durations in the first few days
Other Precautions
- Avoid hot baths, saunas, or hot tubs
- Limit sun exposure on treated areas
- Avoid strenuous activity or heavy lifting
- Refrain from taking blood-thinning supplements such as fish oil, vitamin E, or St. John’s Wort for a few days after treatment
If you follow these aftercare steps, your veins (and any associated lumps) should fade naturally over the following weeks.
What If the Lump Remains After Treatment?
It’s normal for some patients to notice a firm lump at the injection site following sclerotherapy. These lumps are usually made up of trapped blood within the sealed vein.
Here’s what to expect:
- Lumps may feel tender or slightly raised but should not be painful
- They often begin to shrink within one to three weeks
- Massaging the area (as directed) can help with absorption
- If the lump becomes painful, red, or does not improve, call our office for follow-up care
In rare cases, a second treatment may be needed to clear residual trapped blood or to address a feeder vein that wasn’t fully closed during the first session.
Who Should Not Receive Sclerotherapy?
Sclerotherapy with Asclera is not suitable for everyone. You should avoid this treatment if you:
- Are pregnant or nursing
- Have a history of clotting disorders or thromboembolic disease
- Are allergic to polidocanol
- Are currently taking medications that interfere with clotting, unless cleared by a medical provider
Our team at True Jewel will review your medical history to ensure that this treatment is safe and effective for your individual needs.
Final Thoughts
If you’ve developed a lump in a spider vein, don’t ignore it. While it’s often harmless, it may be a sign that your veins need professional attention. True Jewel Cosmetic Center offers expert sclerotherapy with Asclera to help restore smooth, even skin and reduce discomfort.
Spider Veins FAQs
Is a lump in a spider vein dangerous?
Not usually. It’s often a result of trapped blood after treatment or a small clot inside a feeder vein. These typically resolve on their own. Still, it’s important to have it examined by a provider.
Can sclerotherapy remove the lump completely?
Yes, in most cases. Sclerotherapy treats the root of the problem by closing the vein, which leads to reabsorption of the blood and tissue that caused the lump.
How long does it take to see results?
Some patients notice improvement within a few weeks. Full results may take several weeks to a few months, especially for larger or more complex veins.
Will I need more than one session?
Most patients need 1 to 3 sessions, depending on the size and number of veins being treated.
Are there risks of side effects of Asclera?
Side effects are generally mild and may include bruising, swelling, or tenderness at the injection site. Serious complications are rare and will be discussed during your consultation.
Can new spider veins form after treatment?
Treated veins do not return, but new ones can appear over time. Maintenance treatments and preventive steps (like compression and movement) can help.
