The fewer veins you have on your hands, the healthier they are. The veins are small veins. Seeing veins on the fingers and palms of the hands indicates prolonged poor bowel movements. If there are veins on the side of the head of the thumb, it means that the blood supply to the head is insufficient, and you will often have headaches and dizziness. If there is a blue vein at the root of the head of the thumb, it represents hardening of the arteries of the heart. The thicker the veins, the longer and more severe the disease. If the veins are thin and shallow, it means that the duration of the disease is relatively short, and the patient’s heart does not have obvious discomfort, but only has chest tightness when he/she is tired or in a bad mood.