Blue veins on the skin: why they appear, when to worry and how to take care of your vascular health

What are blue veins in the skin?
Blue veins in the skin are a visible manifestation of the venous system, which transports blood back to the heart. Its blue color is due to the way light is reflected through the skin and the characteristics of the human vascular system. However, the appearance of these veins can have various causes, from genetics to more complex health conditions.

Causes of Blue Veins
Genetics: Many people inherit a tendency to develop varicose veins or prominent veins. If your parents or grandparents had visible veins, chances are you developed them too.
Age: Over the years, the skin loses collagen and elasticity, which can make veins more visible. This natural process can be accentuated as you age.
Pregnancy: During pregnancy, the volume of blood in the body increases considerably. This change, along with the weight of the uterus, can press on the veins, causing them to dilate and become more apparent.
Obesity: Excess weight can lead to an increase in venous pressure, especially in the lower extremities, which can result in more prominent veins.
Lifestyle: Lack of exercise, long hours of standing or sitting, and the use of inappropriate footwear can all contribute to the appearance of varicose veins.
Medical conditions: Some conditions, such as venous insufficiency, can cause veins to dilate. This occurs when the valves in the veins don’t work properly, causing blood to pool.
When to Worry
Although many blue veins are a normal part of aging or genetics, there are situations in which it is advisable to seek medical attention:

Symptoms of venous insufficiency: If you notice symptoms such as pain, swelling, or changes in skin color, it is essential to consult a vascular specialist.
Sudden changes: If a vein that was not visible before begins to appear suddenly or change in size, this may be cause for concern.
Scarring or ulcerations: The appearance of wounds or ulcers on the legs that do not heal can be a sign of serious circulatory problems.
Severe pain: If you experience severe pain or a warm sensation in one leg, especially if it’s accompanied by redness, it could be a sign of a thrombus (clot), which would require urgent attention.
How to take care of your vascular health