Gender – Women are more likely to develop veins and related vein disorders due to certain hormones. The female hormones affect blood volume and flow.
Pregnancy – During pregnancy, blood volume increases. This increase can greatly contribute to the widening and enlargement of veins. This widening is a direct cause of varicose and spider veins development.
Genetics / Heredity – People have the ability to genetically inherit the increased risks of varicose and spider vein development.
Aging – Throughout a person’s life, the vein wall weakens. This weakening can directly cause the vein valves to fail. This malfunction of the veins’ blood valves is a major contributor to the development of vein disorders.
Obesity – Weight gain can cause higher pressure and strain on the body’s blood vessels. This rise in pressure can directly cause or add to pre-existing developments of spider and varicose veins.
Excessive Standing / Sitting – Any form of extended junctures sitting or standing can directly cause pooling of blood inside the veins. This blood pooling can cause the development of spider and varicose veins.