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The middle image shows where varicose veins might appear in a leg. Comparison of healthy and varicose veins. Varicose veins are more common in women than in men and are linked with heredity. [16] Other related factors are pregnancy, obesity, menopause, aging, prolonged standing, leg injury and abdominal straining. Varicose veins are unlikely to ...
If blood travels too slowly and starts to pool in the leg veins, the pressure can force too much fluid out of the leg capillaries into the tissue spaces. The capillaries may break, leaving small blood marks under the skin. The veins themselves can become swollen, painful and distorted – a condition known as varicose veins. [17]
Telangiectasia in the legs is often related to the presence of venous reflux within underlying varicose veins. Flow abnormalities in smaller veins known as reticular veins or feeder veins under the skin can also cause spider veins to form, thereby making a recurrence of spider veins in the treated area less likely.
Oftentimes, though, collateral veins are used instead, which is where other veins can take the blood as an alternate pathway so it doesn’t stagnate in the varicose vein, and these tend to actually be the deep veins in the legs. Other than the legs, in men it can also occur in the scrotum (usually on the left side) where it is called a varicocele.
At times, DVT can cause symptoms in both arms or both legs, as with bilateral DVT. [25] Rarely, a clot in the inferior vena cava can cause both legs to swell. [ 26 ] Superficial vein thrombosis , also known as superficial thrombophlebitis , is the formation of a blood clot (thrombus) in a vein close to the skin .
The peripheral vascular system is the part of the circulatory system that consists of the veins and arteries not in the chest or abdomen (i.e. in the arms, hands, legs and feet). [1] [2] The peripheral arteries supply oxygenated blood to the body, and the peripheral veins lead deoxygenated blood from the capillaries in the extremities back to ...
The result is edema, pain and a white appearance (alba) of the leg. The next step in the disease progression is occlusion of the superficial venous system, thereby preventing all venous outflow from the extremity. At this stage it is called phlegmasia cerulea dolens. The leg becomes more swollen and increasingly more painful.
Internal cerebral veins. Basal vein; Great cerebral vein; Veins of brainstem; Cerebellar veins; Orbital veins Superior ophthalmic vein. Nasofrontal vein; Ethmoidal veins; Lacrimal vein; Vorticose veins; Ciliary veins; Central retinal vein; Episcleral vein; Inferior ophthalmic vein; Azygos vein. Posterior intercostal veins. Intervertebral vein ...