Always nervous leg weakness may be related to psychological factors, neurasthenia, calcium deficiency. 1. Psychological factors: If you are usually more timid, it is easy to be excessively nervous in some public places, the phenomenon of nervousness and weakness. Anxiety, phobia patients are more common. 2. Neurasthenia: If long-term in a high-pressure state, due to mental tension, prone to neurasthenia, the patient can be manifested as nervousness and leg weakness, but also prone to inattention, fatigue, fatigue and other symptoms. 3. Calcium deficiency: If the daily diet, calcium intake is insufficient, resulting in a lack of calcium, it is easy to cause osteoporosis, resulting in symptoms of leg weakness. It is recommended that patients strengthen the exercise, enhance their physical fitness, exercise mental ability, enhance self-confidence, if the symptoms have not been relieved, we should consult a doctor in a timely manner.