Involuntary shaking of the thumb may be related to physiological factors, or it may be caused by hyperthyroidism or Parkinson’s disease.
1. Physiological factors: Suddenly stimulated by stressful events, resulting in over-excitement and tension, or engaged in manual work for a long period of time, resulting in thumb muscle strain, may cause involuntary thumb tremor symptoms.
2. Hyperthyroidism: patients with this disease have increased thyroid function, thyroid hormone secretion increases significantly, the body’s basal metabolic rate increases, which may cause involuntary thumb shaking, may also be accompanied by hyper appetite, temper tantrums and other manifestations.
3. Parkinson’s disease: the disease is usually caused by myelin sheath loss, neuron degeneration and other factors, resulting in neurodegenerative diseases, which can lead to extrapyramidal dysfunction, the emergence of involuntary tremor symptoms, which can be manifested in the thumb involuntary shaking, obvious in the stationary state, but also may be accompanied by motor retardation and other manifestations.
Involuntary tremor of the thumb, after excluding physiological factors, should be taken seriously, as soon as possible to the regular hospital for consultation.