Parkinson’s disease is not new to anyone, as it is a disease with a high incidence among middle-aged and elderly people, and it is also a very dangerous disease that many elderly people cannot take care of themselves because of Parkinson’s disease. Hand trembling is a common phenomenon in the elderly. The trembling of both hands is a common phenomenon that affects eating and writing, and is often very distressing. The medical term for this tremor is tremor. However, not all Parkinson’s patients have hand tremors, and not all Parkinson’s patients have hand tremors, but the cause is mostly in the brain. There are many causes of tremors in the hands, including: Parkinson’s disease, idiopathic tremor, psychogenic tremor, drug-induced tremor, hyperthyroidism, cerebellar lesions and other causes. In Parkinson’s disease, hand tremors are usually characterized by a “pill rolling” or “bill counting” movement of the thumb and index finger, and the tremor usually extends from unilateral to bilateral limbs. The tremor usually extends from unilateral to bilateral limbs, and is obvious at rest but decreases during activity. Idiopathic tremor The only symptom of idiopathic tremor is trembling of the limbs, which occurs during movement or in a certain posture and decreases or disappears at rest. Psychogenic tremor is most often seen after an adverse life event and is more common in middle-aged and elderly women, and may reduce or stop on its own after the emotions have subsided. It should be emphasized that before diagnosing the disease, it is necessary to exclude all kinds of organic lesions that cause tremors. Many drugs can cause tremors in the limbs as a side effect, so it is important to take medication in strict accordance with the doctor’s instructions, do not increase, stop or extend the course of medication without authorization, if the tremors occur due to medication, you can promptly seek medical advice, adjust the medication under the guidance of the doctor, regular medication. Hyperthyroidism If hand tremors are accompanied by symptoms such as weight loss, excessive sweating, protruding eyes, and rapid heartbeat, you should go to the hospital for a timely serum thyroxine and thyroid ultrasound examination to confirm the diagnosis and provide accurate treatment. Cerebellar lesions Patients with cerebellar lesions may develop intentional tremor, which means that the closer the patient is to the target object, the more pronounced the tremor becomes. Patients with cerebellar lesions may also present with ataxia such as nystagmus, speech changes, and unsteadiness in standing and walking. In addition, if the tremor is obvious when the limb is at rest and decreases when it is active, you should be highly alert to the possibility of Parkinson’s disease. If you cannot accurately determine this, you need to go to the hospital to seek professional medical help for better treatment.