Swelling of blood vessels in the temple on the left side of the head accompanied by tinnitus may be caused by tension headache, otitis media, cervical spondylosis, migraine and so on, the patient should consult a doctor in time to clarify the cause of the disease. 1. Tension headache: headache caused by mental tension, stress and other factors caused by the fascia or muscle contraction of the scalp, the patient will have one side of the temple blood vessel swelling, tinnitus, headache and other symptoms. 2. Otitis media: swollen blood vessels in the temple on the left side of the head along with tinnitus may also be caused by otitis media on the left side of the head, the patient will also have earache, hearing loss, ear canal pus and other symptoms. 3. cervical spondylosis: long-term poor posture and other factors caused by the herniated disc compression of the vertebral artery leading to cerebral ischemia and hypoxia, the patient will have a head of the left temple vascular swelling accompanied by tinnitus, neck and back pain, upper extremity radiating pain, such people should pay attention to rest, avoid prolonged physical exertion, the use of ibuprofen and other drugs for treatment when necessary. 4. Migraine: when a migraine attack, can lead to one or both sides of the patient’s head paroxysmal pain, mainly vascular throbbing pain, may cause pain in both temples, may also be accompanied by nausea, vomiting, photophobia, photophobia, tinnitus, etc., mostly due to excessive late-night work, mental overstimulation and other reasons. The symptoms of tinnitus accompanied by blood vessel swelling and pain in the temple on the left side of the head, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to clarify the cause, targeted treatment.