Occasional shaking of the left hand may be related to physiological factors, or it may be caused by hypocalcemia, hyperthyroidism, idiopathic tremor, Parkinson’s disease and other causes.
1. Physiological factors: For example, if you are suddenly stimulated by certain stressful events, resulting in excessive psychological fear and tension, you may experience occasional left hand tremors. It may also be due to a long time engaged in heavy manual labor, hand long time lifting heavy objects, resulting in hand muscle fatigue, caused by occasional shaking of the left hand.
2. Hypocalcemia: when the body is seriously deficient in calcium, resulting in low blood calcium levels, resulting in increased muscle nerve excitability, it may cause occasional shaking of the left hand, which may also be accompanied by numbness and tingling of the lips.
3. Hyperthyroidism: excessive secretion of thyroid hormone, resulting in increased basal metabolic rate of the body, may cause occasional tremor of the left hand, which may also be accompanied by hyperphagia, temper tantrums and other manifestations.
4. idiopathic tremor: this disease is a movement disorder, which can cause the patient to shake a part of the body involuntarily, which may show occasional shaking of the left hand, especially when doing fine movements, the symptoms of hand tremor are more obvious.
5. Parkinson’s disease: the disease is a degenerative disease of the nervous system in old age, which can lead to extrapyramidal dysfunction, showing a static tremor, which may cause occasional shaking of the left hand, but also can be accompanied by posture and gait abnormality, slow movement and other manifestations.
After exclusion of physiological factors, patients with left hand tremor should seek medical treatment as soon as possible.