The patient’s exhaled garlic odor is mainly caused by organophosphorus poisoning, which is accidentally or actively taken orally by the patient, and may also enter the body through the mucous membrane absorption of the skin and the respiratory tract, causing nausea and vomiting, abdominal pain, excessive sweating, salivation, slowed heartbeat, and narrowed pupils. The exhaled gas mainly smells like garlic, and if the symptoms are severe, it can also cause generalized muscle convulsions and also peripheral respiratory failure. Damage to the central nervous system can cause headache, dizziness, irritability, and in severe cases, coma. To remove the poison from the body, it also needs to be treated with potent detoxifying drugs, mainly with atropine and dephosphoridine. This symptom may also be caused when ketoacidosis is present.