What condition describes the deficiency or occlusion of blood flow through a vein?

Venous insufficiency is characterized by the inability of the veins to properly circulate blood back to the heart, which often results from a deficiency or occlusion in the venous blood flow. This condition typically occurs when the valves within the veins fail to work efficiently, leading to increased pressure and impaired blood flow. As blood accumulates in the veins, it can cause various symptoms, including swelling, pain, and potential skin changes.

Understanding venous insufficiency is crucial in the context of physical therapy, as it can significantly impact a patient's mobility and overall quality of life. Proper management may include exercises, compression therapy, and education on lifestyle changes to improve venous return. Recognizing how blood flow issues in veins differ from those in arteries is vital for identifying and treating vascular conditions accurately.