What is the bulging vein on kneecap?

Varicose vein: Probably varicose vein due to underlying venous reflux or insufficiency. The latter is caused by damaged valves. Recommend thigh high compression stockings to reduce pressure. Elevation. If significant pain would be evaluated by vascular surgeon. If red and tender evaluation by primary

Varicose veins.: Varicose veins are a result of malfunctioning valves usually in the saphenous system. The first step in treatment would be to obtain a venous reflux ultrasound to make the diagnosis and help plan treatment which could be laser or radiofreqency closure of the valves usually with microphlebectomies and possible sclerotherapy or ultrasound directed sclerotherapy. You should see a vein specialist.

Varicose veins: the bulging vein that you are noticing at the level of you're knee Is most likely secondary to a vein reflux at the level of the thigh. This should be investigated by a venous duplex ultrasound to determine the source of the problem. Once this is done a treatment plan can be determined.