The vast majority of cases where blood vessels are evident on the arms are physiological and do not require further examination and treatment. This condition is common in the following three types of people: 1. young women with thin bodies and white skin; 2. elderly people; 3. people who are often engaged in physical labor or physical exercise. The above three types of people have less subcutaneous fat and thinner skin, so the blood vessels on the arms are obvious, and many people will worry whether the veins on the arms are obvious or not. Because the arms are closer to the heart of the body, the reflux is easy and they do not bear excessive venous pressure, so they do not suffer from varicose veins and there is no such disease as varicose veins in the arms.