Patient : I have black veins on the back of my right thigh. They are very dark and do not cause any pain but my leg has been falling asleep and losing feeling more often. My left thigh is now starting to develop dark red veins that look like how my right thigh started off. The veins are not raised or blue like varicose veins. What could these be and are they serious?
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.