Phases of venous valves in their normal and varicose state. In this representation, we can observe the fundamental difference between the functioning of a healthy circulatory system and one affected by venous insufficiency. Furthermore, this image highlights how the structural integrity of the valves determines the direction of blood flow. Likewise, in the diagram, one can appreciate the closing mechanism that prevents gravity from moving the blood downward in the limbs.
In a healthy vein, the valves act as high-precision one-way gates. Consequently, when the muscle contracts, the blood rises efficiently toward the heart. Because the valves close tightly after the fluid passes, reflux is practically non-existent. Therefore, the pressure inside the vessel remains at normal physiological levels. However, this balance depends on the elasticity of the venous walls and the condition of the valvular cusps. As a result, optimal circulation prevents the appearance of annoying symptoms in the legs.
On the contrary, the varicose state represents a significant mechanical failure. In this illustration, it can be seen how damaged valves fail to meet in the center of the vessel. As a result, blood leaks backward and accumulates in the lower segments of the vein. Since the vein walls are thin, the accumulated pressure causes progressive and tortuous dilation. For this reason, the vessel becomes visible under the skin and takes on a bulging appearance. In the same way, this blood stagnation generates inflammatory processes in the surrounding tissues.
Finally, the progression of varicose disease leads to evident clinical complications. Usually, patients report a persistent feeling of heaviness and edema at the end of the day. On the other hand, the lack of timely intervention can lead to changes in skin coloration or ulcers. Although compression stockings help, medical procedures are often required to seal the affected vein. In conclusion, understanding these phases is crucial for early diagnosis and effective treatment.