Swelling, pain and tenderness in the affected leg
The pain may start in the calf and feel like cramping or soreness
Warmth feeling in the affected leg
Red or discoloured Skin
Large veins near the skin’s surface
A personal or family history of deep vein thrombosis or pulmonary embolism
Cancer
Cancer treatment
Obesity
Pregnancy
Prolonged bed rest
Side effects of certain medications
Sitting for long periods
Surgery complications
Trauma or injury to a vein
Use of birth control pills
Emergency Medicine Doctor
Hematologist