2. Varicose degree: Evaluate the degree of varicose veins, including the number and degree of varicose veins, and whether there is thrombosis. These can be determined by professional doctors' examination and imaging techniques (such as ultrasound or venography).
3. Affected skin area: Assess the scope and severity of the affected skin area, including pigmentation, dermatitis, subcutaneous induration, etc. The severity of these changes can be evaluated by observing the skin.
4. Degree of functional limitation: Assess the degree of patient's activity limitation. This can be determined by asking patients whether they encounter difficulties in daily life, such as pain or discomfort when climbing stairs and walking.
5, psychological impact: varicose veins will bring psychological pressure and trouble to patients. Assess patients' psychological state, including whether they feel anxious or depressed.