Too thin blood vessels are generally a physiological phenomenon and do not need to be concerned or further treated. The thickness of blood vessels is related to congenital factors and acquired factors, congenital factors are due to individual differences, each person’s blood vessels are thick and thin, while acquired factors are if not regular physical exercise or physical labor, it will make the muscle gradually atrophy, oxygen demand will be reduced and lead to the corresponding return blood vessels veins will gradually become thinner, veins are the blood vessels that can be seen on the human body, so this kind of blood vessel thinning is compatible with the physiological However, if the physical state allows, it is still recommended to carry out various physical exercises and sports to gradually thicken the blood vessels and make the whole body function better and enhance the immunity.