The main causes of pain on one side of the temple are as follows: 1. If there is a history of insomnia, poor sleep quality, etc., headache, dizziness, drowsiness and other symptoms easily appear in the morning after waking up, caused by insufficient blood supply to the cerebral arteries. 2. Migraine is a kind of vascular fluctuation headache, which refers to pain on one or both sides of the temporal region, which can be accompanied by nausea, limb weakness and other discomfort symptoms, reflexively causing pain on one side of the temple. The acute recurrence of migraine can be triggered by mental tension and overexertion, which is common in young female patients.