Venous Circulation: Insufficiency, Varicose Veins, and Natural Treatments

What is venous circulation, and how does it work?

Venous circulation refers to the return of blood to the heart after oxygen and nutrients have been delivered to the tissues. Unlike arteries (which operate at high pressure), veins operate at low pressure and must work against gravity to return blood from the lower limbs—approximately 70% of total blood volume is found in the venous system. Venous care products are available in the “heavy legs ” and “venous circulation ” sections of the store.

• Mechanisms of venous return: muscle pump (contraction of the calf muscles during walking—the primary venous pump) — respiratory pump (intrathoracic negative pressure during inhalation) — venous valves (anti-reflux valves that prevent stasis) — tone of the venous walls
• Chronic venous insufficiency (CVI): valve failure and loss of venous wall tone → blood reflux → venous hypertension → inflammation of the vessel wall → fluid leakage into the tissues → edema — affects 1 in 3 French people, with a clear prevalence among women
• Modifiable risk factors: sedentary lifestyle (inactivity of the muscle pump) — prolonged standing (standing motionless = worst position for venous return) — being overweight — heat (venous vasodilation) — tight clothing around the thighs — smoking
• Non-modifiable risk factors: heredity — pregnancy (compression of the iliac veins + vasodilatory progesterone) — aging (loss of elasticity in the vein walls)

What are the symptoms and complications of poor venous circulation?

• Symptoms of chronic venous insufficiency: heavy legs (worsened by heat, at the end of the day, during menstruation) — swollen ankles — nighttime cramps — itching or burning along varicose veins — varicose veins (visible dilated veins) — late-stage trophic disorders (ochre dermatitis, venous ulcers)
• Complications — see a doctor: superficial phlebitis (red, painful cord along the varicose vein) — see phlebitis — deep vein thrombosis (unilateral swelling + calf pain + warmth → call 15 immediately) — pulmonary embolism (sudden shortness of breath + chest pain → call 15)
• Venous Doppler ultrasound: the gold standard for assessing venous reflux, detecting DVT, and guiding treatment — by doctor’s order

How can you support venous circulation naturally?

• Physical activity and the muscle pump: walk 30 min/day — swimming — cycling — standing ankle flexion-extension exercises (10 × 3 sets) — elevate legs while resting (legs above heart level for 15–20 min/day)
• Compression stockings and socks: Class 1 (prevention—travel, prolonged sitting) — Class 2–3 by doctor’s prescription (confirmed deep vein thrombosis, varicose veins, post-DVT) — never wear if you have peripheral arterial disease
• Aescin (horse chestnut): venotonic and anti-edematous — reduces capillary permeability and improves venous tone — well-established safety profile — contraindicated with anticoagulants
• Red vine: vasoprotective OPCs — strengthens vein walls and reduces edema — well-established EMA
• Bioflavonoids (diosmin, hesperidin): reduce capillary hyperpermeability and venous inflammation — strong clinical data in chronic venous insufficiency (CVI)
• Witch hazel (leaf extract): vasoconstrictor and astringent — for topical use (gel, cream) for heavy legs and varicose veins — for internal use to support venous tone