Nerve damage can cause numbness, but the nerve repair time is long, whether it will always numbness need to be judged according to the degree of nerve damage, damaged parts and treatment. 1, the degree of damage: If the nerve damage is light, only the epidermis of the nerve is damaged, after appropriate treatment, the function of the nerve will gradually recover, numbness symptoms will also be gradually relieved, generally need 1-3 months. In addition, compression leads to peripheral nerve damage, such as nerve compression by lumbar disc herniation or nerve inflammation resulting in numbness, after treatment to lift the compression and eliminate inflammation, with the repair of the nerve, numbness can be relieved; 2, damaged parts: If the core of the nerve is damaged, it is generally more difficult to recover. After treatment numbness symptoms may be reduced to some extent, but it is difficult to disappear completely. If there is a complete break in the nerve, it is basically impossible to repair, and numbness symptoms will always exist. Compression leading to peripheral nerve damage, such as nerve compression by lumbar disc herniation or nerve inflammation leading to numbness, after treatment to lift the compression and eliminate inflammation, with the repair of the nerve, numbness can be relieved; 3. Treatment: the earlier the treatment, the greater the possibility of recovery, if the disease is neglected, delayed treatment, or improper treatment leading to increased nerve damage, may cause permanent damage to the nerve, unable to recover, and numbness symptoms will Long-term existence. If the cause of numbness cannot be removed, such as recurrent recurrence of lumbar disc herniation, subluxation compressing the nerve, or permanent damage to the central nerve, it is generally difficult to cure and numbness will recur frequently. Therefore, the presence of nerve damage should be treated promptly at a hospital to facilitate early recovery of nerve function and relief of numbness symptoms.