Aging: As you age, your veins grow weaker and more susceptible to vein disease..
What is a spider vein?
A spider vein is a small blood vessel just under the surface of the skin which can indicate an underlying disease.
A Spider vein is a thin, red vessel that commonly you can see just under the surface of your skin are not truly veins, but rather dilated capillaries.
They’re named spider veins because they remind us of spider webs, and are also sometimes described as looking like marble. Spider vein, as well as varicose vein, are symptoms of vein disease.
SPIDER VEIN PATTERNS
Spider veins usually take on one of three basic patterns:
A. Thin separate lines
B. Tiny branchlike shapes
C. A true spiderlike shape radiating outward from a dark center
Linear spider veins are commonly seen on the inner knee, whereas the arborizing (branch- or spiderlike) patterns often appear on the outer thigh in the form of a sunburst or cartwheel.