They are frequently associated with pregnancy and there may be hormonal factors associated with their development. They are primarily of cosmetic concern and do not present any medical concerns.
Varicose veins, swollen tortuous veins, are called varices in medical terms.
Yes, seek medical advise as this could indicate a clot forming.
Blood is typically drawn from veins during a medical procedure, as veins are more accessible and less risky to puncture compared to arteries.
Nothing - it's when your veins aren't blue that there's a problem.
Varicose Veins.
malfunctioning valves in veins
Hemorrhoids are dilated or varicose veins of the rectum or anus. They can be painful or painless.
Blood is typically drawn from veins during a medical procedure, as they are easier to access and less risky than arteries.
The answer to that is varicose veins.
Blood is not blue. That found in veins are slightly darker than those found in arteries (usually). You may have seen drawings in which the veins are blue but is just to indicate that these blue vessels are veins.
It is a clot in the (phlebitis) inflammation of the superficial veins.
Blood vessels