It is estimated that 40% of women have varicose veins or spider veins. Men also develop them, but with less frequency. Although there are many reasons given for the development of these unsightly veins and capillaries, the most common cause is heredity. Most of these can be easily and safely removed, as described below.

What are Varicose Veins?
Varicose veins are enlarged, non-functional, veins that are more than 2 millimeters in width and may exceed 2 centimeters. They may appear blue or green but often no color is seen. In this latter circumstance, they appear as protruding, cords under the skin. Varicose veins are apparent when standing but often seem to disappear when lying down or with leg elevation. Sclerotherapy and Endovenous Ablation are the most effective non-surgical methods for removing varicose veins.

What are Spider Veins?
Spider veins are enlarged veins less than 2 millimeters in width. They appear deep red, blue or purple. While often flat, they may protrude, especially when standing. Sclerotherapy remains the most effective non-surgical method for removing spider veins.

What are Dilated Capillaries?
Dilated Capillaries (also referred to as ‘broken capillaries’, or ‘broken blood vessels’) appear as red or pink thread-like lines, usually less than 0.2 millimeters in width. When a large number of capillaries are clustered together they may have the appearance of a red patch or a bruise that never disappears. Besides the legs, dilated capillaries are often seen on the face and nose.

What is the cause of Varicose Veins, Spider Veins and Dilated Capillaries?
The most common cause of these enlarged veins and capillaries is heredity. These can be inherited from the maternal or paternal side of the family. If someone is predisposed these can appear as early as during the teen years, although in most they appear later in life. Even if a person is predisposed, there are additional factors that may enhance the development of varicose veins, spider veins and dilated capillaries. These include pregnancy and injury, such as a contusion or blow to the leg.

“You cannot go wrong with this dermatologist. Dr. Green and his staff are the very best! They go out of their way to assure patient satisfaction. I have used many services in the Bethesda location, and have always been more than satisfied. I highly recommend Dr. Green.” 

Susan E.

Dr. David Green, M.D.

Dr. David Green is a Board certified Dermatologist in Bethesda, Maryland. Dr. Green specializes in Dermatology, Dermatologic Cosmetic and Laser Surgery and the treatment of Varicose Veins and vascular disorders.

He is Certified by the American Board of Dermatology, is a Fellow of the American Academy of Dermatology, and a Member of the American Society for Dermatologic Surgery, and the American College of Phlebology. He treats patients from Maryland, Washington DC, Virginia and throughout the Mid Atlantic region.


Dr. David Green proudly offers services in his Bethesda, Maryland office.

4800 Montgomery Ln.,
Suite LL50
Bethesda, MD 20814
Phone: 301.907.7250


10.32.09: Delegation and Assignment of Performance of Cosmetic Medical Procedures and Use of Cosmetic Medical Devices. This is a Maryland safety regulation that governs who can legally perform medical cosmetic procedures.  Dr. Green administers all injectable treatments (including Botox™, Juvederm™, Voluma™, Kyblella™, and other fillers & Sclerotherapy) and laser treatments.