Classification of varicose veins
Venous problems may be classified from 0-6 as follows:
| Class 0 | No veins | |
| Class 1 | Telangiectasia, thread veins. These are not really varicose veins. |
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| Class 2 | Simple varicose veins. |
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| Class 3 | Varicose veins with ankle swelling. | |
| Class 4 | Varicose veins with skin changes. |
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| Class 5 | Varicose veins with an healed ulcer. |
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| Class 6 | Varicose veins with an active ulcer. |
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