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Are varicose veins dangerous?
Are varicose veins dangerous? Early on, usually not. But left untreated they can progress to painful leg ulcers and serious complications. Here is when to act.
- Early varicose veins are usually harmless, mainly a cosmetic concern.
- Venous insufficiency is progressive and worsens over time.
- Later stages bring pain, skin changes and poor sleep.
- The worst complication is a venous leg ulcer, a slow-healing wound.
- Treating early prevents ulcers, and works without surgery.
Varicose veins often look snake-like and bulging, and may be blue, green or purple. A vein is essentially a tube with valves: when the valves work, they keep blood flowing up and stop it running back down. When they break, blood flows back towards the feet and varicose veins form. So are they actually dangerous?
Early symptoms and risks
Early on, varicose veins usually cause few or no symptoms, and the main concern is cosmetic. Minor signs include heavy legs, swollen feet, dry, itchy skin and spider veins. These early warnings are easy to dismiss, but acting on them early tends to lead to better outcomes.
And acting is simple: a varicose vein can be treated without surgery, focused ultrasound (echotherapy) closes it with no incision.
Later-stage symptoms and risks
Venous insufficiency is progressive: it spreads to other veins and worsens over time. As it advances, it can cause real pain, with the skin over the veins becoming irritated and sore, lowering quality of life and disturbing sleep. Further still, it can lead to venous leg ulcers, one of the most severe complications: chronic wounds that do not heal on their own and can take weeks to close.
| Stage | What happens |
|---|---|
| Early | Usually harmless: heavy legs, swelling, itchy skin, spider veins. |
| Progressing | Pain, sore and irritated skin, poor sleep, restricted activity. |
| Advanced | Venous leg ulcers, chronic wounds that need medical care. |
The danger of leg ulcers
Leg ulcers need prompt care: they are often colonised by bacteria and can lead to serious conditions such as bone infection or sepsis. Even after healing, the risk of recurrence stays high, around 25% of patients have another ulcer within two years, so weight control, compression socks and skin care are key.
The takeaway: do not wait. See our guide on how to treat varicose veins.
So, are varicose veins dangerous?
Early on, usually not, they are not even considered worth treating. But left untreated as symptoms worsen, they can cause severe venous leg ulcers that become dangerous. That is why it is wise to see a doctor as soon as varicose veins start to cause any discomfort, to discuss treatment and prevent ulcers.
Wondering whether echotherapy is available near you? A growing network of centres is already equipped with the SONOVEIN.
Questions fréquentes
Are varicose veins dangerous?
Early on they are usually harmless. But left untreated as symptoms worsen, they can lead to venous leg ulcers and serious complications.
What happens if varicose veins are left untreated?
The disease progresses to other veins, causing pain, skin changes and, at the worst stage, leg ulcers that do not heal on their own.
What is a venous leg ulcer?
A chronic open wound caused by high pressure in damaged veins. It needs medical care and can take weeks to heal, sometimes leading to infection.
Can leg ulcers come back?
Yes. About 25% of patients have another ulcer within two years, so prevention with weight control, compression and skin care matters.
When should I see a doctor about varicose veins?
As soon as they cause discomfort or the skin around them changes, so treatment can prevent the ulcer stage.