Obsolete cerebral thrombosis usually does not fully recover. On imaging, the brain tissue and cellular damage caused by old cerebral thrombosis cannot be recovered and is a permanent lesion. If it causes symptoms related to neurological deficits, it can be treated with medication or rehabilitation, and the symptoms can gradually subside, but the necrotic brain tissue and brain cells can no longer regenerate. Although the damage to brain nerve cells caused by old cerebral thrombosis cannot be recovered, the brain has a compensatory function, and through certain rehabilitation exercises, it can allow healthy nerve cells to form new synaptic connections and gradually restore nerve function. The process of rehabilitation exercise is relatively long, so it is necessary to maintain a healthy mindset and face it positively. There is a possibility of recurrence of old cerebral thrombosis. In addition to rehabilitation exercises, we can also prevent the recurrence of old cerebral thrombosis through healthy lifestyle, regular use of medication and regular follow-up.