The main causes of trigeminal neuralgia include: 1, caused by tumor, inflammation and other lesions around the trigeminal nerve, treatment is mainly to cure the cause, if it is a tumor, the tumor needs to be removed; if it is an infected lesion, anti-infection treatment is needed. After corresponding symptomatic treatment, the symptoms of trigeminal neuralgia can generally be relieved. 2. Primary trigeminal neuralgia is mainly caused by the compression of the blood vessels and nerves in the cranial part of the trigeminal nerve. Early treatment is mainly based on drug therapy, and the first choice of drug is recommended to be carbamazepine. Next, phenytoin sodium, heptaerythrine, baclofen, etc. can be chosen. The characteristics of drug treatment are: the longer the treatment time, the worse the treatment effect, the greater the side effects, the efficacy is not guaranteed, the patient may finally need to be treated by surgery, the current recommended program is microvascular decompression, which can make the primary trigeminal neuralgia can be effectively eradicated.