Idiopathic tremor is also known as primary tremor. It is a common movement disorder in which tremor is the only manifestation. The disease has an insidious onset, progresses slowly, and may be in long-term remission, and usually does not affect natural life expectancy. However, it is an autosomal dominant disease with a certain probability of inheritance. 1. Clinical manifestations: The pathogenesis and pathologic changes of idiopathic tremor are not well understood. The disease starts slowly and progresses slowly. It can be seen at any age. It is mostly seen in people over 40 years old. Tremor is the only clinical symptom. The main manifestations are postural tremor and action tremor. Often seen in one side of the upper limb, both upper limbs. The tremor can be aggravated by agitation, tension, fatigue and cold in some people. 2. Treatment: Treatment is often medication, such as propranolol and paracetamol. If the effect of a single drug is not good, it can also be combined with drugs. If anxiety symptoms are combined, benzodiazepines such as alprazolam can be added. Other medications include gabapentin, topiramate, and botulinum toxin type A. If idiopathic tremor occurs, do not use medication on your own, you need to seek medical attention as soon as possible to avoid serious complications.