We're Now California Skin Institute Sunnyvale!


Sunnyvale Dermatology

603 S. Knickerbocker Dr.

Sunnyvale,  CA   94087

(408) 736-0441

Diseases and Surgery of the Skin

Cosmetic Dermatology

Dr. Bernard Recht


Please call us for a free consultation visit


What are spider veins?

Spider veins, or telangiectasis, are those tiny purple and red blood vessels found most commonly on the thighs or lower legs of women. They are hereditary and can form any where on the legs, from the top of the thigh to the ankle. Occasionally, spider veins can appear on the face.

What is Sclerotherapy?

Sclerotherapy was developed in the 1920s.  During the procedure, a sclerosing solution is injected into the vein using a micro-needle.  The tiny needle generally causes very little pain.  The sclerosing agent causes the vein to blanch (turn white) and then gradually disappear.  A typical treatment may last for 15 to 20 minutes and consist of multiple injections.

How many treatments will I need?

Complete correction is not expected after the first treatment.  In most cases about 50-70% of the treated vessels will fade for good.  However, new veins may appear and additional treatments are generally required for optimum results.  In addition, even with repeat injections, some of the veins may not completely disappear.

What can I expect after the treatment?

We will be placing cotton balls covered by tape on top of the injected areas that should be left on till the following day.  There may be side effects.  The patient may experience some discomfort during the procedure because multiple needle pricks are necessary.  Some patients notice black and blue marks from leakage of blood vessels underneath the skin after the procedure in the treated areas.  These black and blue marks tend to disappear over two or three weeks.  Occasionally there may be some persistent light brown pigmentation that may last for several weeks, months or longer.  On rare occasions the patient may notice a small sore or erosion of the skin that can occur at the site of the injection.  While this is quite unusual, it can occur and the area may heal with a slight dell or dent.