This website is for informational use only and does not provide any medical advice.

What is venous disease?

Venous disease refers to a group of diseases that damage veins causing valves to not close completely, enabling blood to leak backward or flow in both directions. Venous diseases include:

  • Varicose veins
  • Phlebitis
  • Deep vein thrombosis
  • Venous insufficiency
  • Arterial or venous blood clots
  • Peripheral arterial disease
  • Pulmonary embolism


There are a variety of symptoms that can occur with venous disease from mild to life-threatening. These symptoms include:

  • Blood clots
  • Chronic leg swelling
  • Increased pressure in the legs
  • Increased pigmentation or discoloration of the skin
  • Leg ulcers
  • Pain or cramping of the legs
  • Varicose and spider veins


There are a number of conditions that can cause the valves and veins to not work properly leading to venous disease. These causes include:

  • Hypertension
  • Obesity
  • Pregnancy
  • Family history
  • Standing or sitting for prolonged periods without walking