Learn
In-depth articles on a single subject, and short videos from our centres.
Articles
- Vein Conditions & SymptomsDVT: The Blood Clot Everyone FearsA blood clot in the leg (DVT): the warning signs, who is really at risk, flights, the pill and pregnancy, treatment, and clots after vein treatment.
- Vein Conditions & SymptomsWhen Leg Swelling Is — and Is Not — Caused by VeinsSwollen legs? How to tell vein swelling from lymphoedema, heart failure, medication, lipoedema or DVT, the red flags, and how a duplex scan settles it.
- Vein Conditions & SymptomsSpider Veins: Cosmetic or Medical?Are spider veins just cosmetic? Why they appear, when they signal a leaking vein underneath, when to have a duplex scan, and how sclerotherapy treats them.
- Understanding Vein DiseaseIs It in Your Genes? The Genetics of Varicose VeinsAre varicose veins hereditary? How family history, PIEZO1 and other genes affect risk, what a genetic test can and cannot tell you, and why a scan matters.
- Understanding Vein DiseaseWhat Actually Causes Varicose Veins?What causes varicose veins? Faulty valves, reflux, vein-wall changes and genetics, plus age, pregnancy, weight and standing, and why a duplex scan matters.
Videos
Short videos by Dr Johan Blignaut. They load from YouTube only when you press play. More on our YouTube channel.
Varicose veins
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What are varicose veins? 2:45
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Why do varicose veins appear? 1:49
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Symptoms of varicose veins 1:36
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Severe symptoms of varicose veins 4:46
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Are varicose veins hereditary? 1:23
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Can you prevent varicose veins? 1:03
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Myths about varicose veins 1:30
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How do you know if you need treatment? 0:59
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Skin damage from vein disease 1:05
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Veins after previous operations 2:03
Spider veins
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Spider veins and sclerotherapy 2:26
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How spider veins are diagnosed 2:00
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Vein clusters after an injury 1:03
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What is sclerotherapy? 2:27
Leg ulcers
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Venous leg ulcers: diagnosis and treatment 4:44
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What is a leg ulcer? 5:31
Treatments
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What is endovenous radiofrequency ablation? 1:24
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Radiofrequency ablation explained 3:11
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How the procedure is done 1:39
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Don’t we need the veins that are closed? 2:30
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Medical adhesive (glue) closure 2:11
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Foam sclerotherapy and micro-sclerotherapy 2:18
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Vein stripping compared with modern treatment 1:41
Your visit
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What to expect at your visit 2:10
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Why every patient has a duplex scan 2:05
Costs
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Is radiofrequency ablation covered by medical schemes? 0:58
About us
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Vein Centres South Africa 0:33