A tendon pain on the left side of the head is commonly associated with migraine, occipital neuralgia, tension headache, cervical spondylosis, etc. Migraine is mostly seen in young and middle-aged women, manifesting as vascular pulsating headache near the temples on one side or both sides, with blurred vision, limb movement and sensory impairment before the headache, and patients may also show nausea, vomiting, sweating and panic in addition to headache. Occipital neuralgia is located on one or both sides of the back of the occipital area. It is often caused by cervical spondylosis, local cold, inflammation and other stimuli, and is characterized by cutting pain in the distribution area of the occipital nerve, and the pain can be aggravated when coughing or sneezing. Trigeminal neuralgia mainly manifests as cutting pain in the head and face, often triggered by irritation from washing the face and brushing the teeth, and the pain is more intense. Headache caused by cervical spondylosis is usually associated with pulling pain at the back of the head on one or both sides, often accompanied by discomfort in the back of the neck, soreness in the shoulders and numbness in the upper limbs.