Patients appear dizzy after quitting smoking, consider the following reasons: 1, belong to the normal reaction to quit smoking, because in the case of long-term smoking, the patient’s body and psychological dependence on tobacco, the body does not adapt after suddenly quitting smoking will lead to patients with dizzy performance. Because the nicotine, nicotine and other components of tobacco can play an excitatory effect on the brain nerves, when you quit smoking, the nicotine and nicotine content in the body gradually reduced, the patient will show dizziness, dizziness, weakness, mental atrophy. 2, the symptoms of dizziness after quitting smoking may be related to cerebrovascular disease, when suddenly quit smoking may make the patient’s cerebral vasoconstriction, diastolic dysfunction and lead to dizziness.