Frequent prolonged standing may cause varicose veins in the lower limbs, which is not good for your health. When standing, due to gravity, it will make the valves in the blood vessels of the lower limbs undergo higher pressure, and in the long run, the valves will become more and more loose and unable to close tightly. This eventually causes primary varicose veins of the lower extremities to become tortuous. Varicose veins are more common in the form of varicose saphenous veins, which are often characterized by dilatation, tortuosity, and limb weakness of the veins of the lower extremities. As the condition progresses, the ankles can become swollen, and some trophic changes can occur in the boot region of the foot, including skin pigmentation, dermatitis, eczema, and ulcers. For primary varicose veins, current treatments include compression stockings, sclerotherapy injections and surgery. If you feel unwell, please seek medical attention.