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Phlebology

leg veins

The term phlebology refers to the study of disorders that affect the veins (Greek: Phlebos = vein, blood vessel). Based on a survey of the World Health Organization (WHO), venous disorders rank among the most common diseases worldwide. Venous leg disorders are some of the earliest documented illnesses suffered by mankind. They can vary greatly in severity, and only very few people are completely symptom-free.

Venous disorders may manifest themselves as mild symptoms, such as a feeling of heaviness in the legs. Other affected persons may suffer from pronounced venous dysfunction with severe impairments. Often problems arise, when they could perhaps have been avoided, due to lack of knowledge about the functioning of the body. Venous disorders should always be taken seriously and any early signs, such as spider veins, diagnosed and treated as soon as possible.

Good to know
  • 5 litres of blood are pumped through our bodies every minute
  • 65 % of the total quantity of blood in the body is located in the veins
  • Of the 4.500 litres of blood transported daily out of the legs and back to the heart, 90 % is transported by the deep major veins, and 10 % by the superficial veins
  • The most important superficial veins are the great saphenous vein and the small saphenous vein

Leg veins

The blood circulatory system (cardiovascular system) of our body is very complex and we are all aware that the heart plays a fundamental role in it. That the leg veins, in particular, have an extremely demanding task to perform day in, day out, is not known to many people. The veins in the legs must return the blood from the lowest point in the body back to the heart, against gravity and without any breaks – 24 hours a day, throughout our entire life.

The “muscle-vein pump” of the leg muscles, also referred to as the “calf muscle pump”, performs the most important function in returning the blood to the heart. Every time we move our legs (e.g. while walking), we tense the muscles in the lower leg which then function like a natural pump, push the blood out of the legs and back up to the heart.

Even the smallest changes to a vein, for example when it becomes dilated, can have a negative impact on the functioning of the venous valves so that they will no longer be able to close properly. This can cause the venous blood in the veins to accumulateand only flow slowly. This blood stagnation is initially perceived as “heavy” or “swollen” legs. If these symptoms are left untreated, however, they can lead to further more serious illnesses.

Source: Juzo