Can veins get worse after sclerotherapy?
Sclerotherapy also does NOT worsen existing veins or cause more spider veins to form. 7. Some patients, but not all, will need to wear compression hose after treatment. This is typically no longer than 5 days.
As the capillaries become more and more engorged, red blood cells and haemoglobin are pushed into the skin, where they are broken down into haemosiderin (iron), staining the skin. This hyperpigmentation can become dark and even after successful treatment of the venous insufficiency, may never fully disappear.
After sclerotherapy, there's still a possibility for spider veins to come back. It's because some individuals are more prone to getting spider veins due to genetics, weight gain, or a sedentary lifestyle. Others may be suffering from a condition called venous insufficiency.
Results. If you were treated for small varicose veins or spider veins, you can usually expect to see definitive results in three to six weeks. Larger veins may require three to four months.
Between 1 – 3 weeks after treatment, you may see and feel tender dark lumps where veins were treated. This is trapping, where blood is trapped in a section of closed vein, and is very common. However, it may cause the area to become sore, red and irritated.
You may experience certain side effects after sclerotherapy. Larger injected varicose veins may become lumpy and/or hard for several months before resolving. Raised red areas may appear at the injection sites and should disappear within a few days. Brown lines or spots on the skin may be seen at the injection sites.
The most effective treatment option for removing post sclerotherapy staining is with the use of medical grade lasers. Various lasers have been tried and it has been found that lasers which deliver their laser beam in much shorter pulses are more effective in shattering pigment than lasers that produce longer pulses.
If the patient does not wear compression stockings following sclerotherapy, there is a chance that the treated veins will fill back up with blood after the treatment. The results of sclerotherapy will be undermined in such a situation.
All staining usually fades over a period of time. It might take weeks to many months, depending on your skin type. The best way to prevent staining is for your doctor to use the lowest concentration of sclerotherapy solution.
Once your vein has been treated, it is unlikely that the same varicose vein will reemerge in the same location. If a varicose vein returns in the same spot after treatment, it reopens in a process known as recanalization. The risk of recanalization is rare — under five percent — but never zero.
What can go wrong with sclerotherapy?
Those serious side effects include ulceration of skin around the injected area, allergic reaction to the sclerotherapy solution, mild inflammation and discomfort around the injected area, and blood clot formation in the treated veins.
Lifestyle choices like prolonged sitting or standing can cause varicose veins because of the added pressure on the veins. If your job requires you to sit for extended periods of time or to stand for extended periods of time, you are at a higher risk of developing varicose veins.

Sclerotherapy is a medical procedure that treats varicose veins and spider veins, usually on your legs. Your healthcare provider uses a needle to inject a special solution into your varicose vein or spider vein. This chemical solution irritates your blood vessel lining, making it expand, stick together and form a scar.