Male hand trembling may be related to fatigue, hand cold, lack of calcium, bad habits, cardiovascular disease, etc., the specific analysis is as follows: 1, fatigue: caused by long-term overwork, usually pay attention to more rest, avoid overwork; 2, hand cold: usually should pay attention to hand warmth, especially when the weather is cold, when the hand shaking is found to be more serious, hot towels can be used hot hand to relieve the symptoms; 3, hand shaking: you can eat walnuts or drink milk, these foods are rich in calcium; 5, cardiovascular habits; 5, good habits; 3, lack of calcium: you can eat more walnuts or drink more milk, these foods are rich in calcium; 4, bad habits: such as staying up late for a long time, usually to develop good habits; 5, cardiovascular and cerebrovascular disease: for safety reasons, it is recommended to go to a regular hospital to do a comprehensive examination and treatment.