Poor peripheral circulation in the fingers can be improved by enhancing nutrition, exercising, adjusting lifestyle habits, and taking medication. 1. Nutritional support: you can eat more substances rich in high quality protein and lecithin to improve blood vessel recovery and improve peripheral circulation. 2. Exercise: Aerobic exercise such as walking, jogging, swimming, playing badminton and other whole-body exercises. You can also move your hands and feet, for example, high-fiving with both hands, clenching fists with both hands, alternating five-finger stretching, pinching grip balls, practicing arm strength machines and so on. 3. Adjusting lifestyle habits: avoid late nights, fatigue, excessive stress, excessive emotion, etc. 4. Take drugs: you can choose vitamin B12 and methylcobalamin capsules and other drugs to nutritional nerve. Poor peripheral circulation in the fingers should seek medical advice as soon as possible, standardized diagnosis and treatment under the guidance of a professional physician, drugs should be used under the guidance of a physician.