Thread veins are extremely common mostly affect the face, body and legs and are sometimes considered unsightly and embarrassing. They are not broken capillaries but rather permanently dilated capillaries. They have very thin walls which constantly dilate and constrict and as we age, these vessels lose their elasticity, can become permanently dilated and therefore noticeable to the naked eye.
The causes of thread veins are unknown although they may be caused by changes in temperature, smoking, hormonal changes, alcohol, skin fragility, pregnancy as well as being a possible inherited condition. They are commonly seen in a maturing ‘English Rose’ complexion.