Unwanted veins and capillaries on the face, legs or other parts of the body are common in both men and women. Often referred to as spider veins for their fine, web like appearance, the medical term for them is telangiectasia and although they are not normally a cause for concern, they can be a cosmetic nuisance. The cause of telangiectasia depends on their location. In general, vessels become more visible with age as the skin becomes thinner. On the face they are often related to rosacea and on the legs they can sometimes be associated with varicose veins. Sun exposure, hormones, pregnancy or family history can also be contributing factors.