Tiger muscle throbbing can be caused by muscle spasm, cervical spondylosis, motor neuron disease, cervical spinal cord lesions and other factors. 1. Muscle spasm: prolonged hand activities can lead to overwork of local muscles, or lack of calcium leads to elevated excitability of the tiger’s mouth muscles, which can trigger the tiger’s mouth muscles to appear tense and spasmodic, manifested as the symptoms of tiger’s mouth muscle throbbing. 2. Cervical spondylosis: Neurogenic cervical spondylosis can compress the nerve roots, leading to abnormal nerve root discharge, which can cause nerve compression or abnormal contraction in the innervated area of the muzzle muscles and other nerve roots, resulting in throbbing of the muzzle muscles. 3. Motor neuron disease: when spinal cord anterior horn cell lesion occurs, it can lead to abnormal nerve discharge, triggering involuntary muscle contraction, which can be manifested as spasm and throbbing of the tiger’s mouth muscles. 4. Cervical spinal cord lesions: spinal cord lesions, such as myelitis, can also cause involuntary local muscle symptoms, which can be manifested as throbbing of the muzzle, accompanied by sensory deficits, weakness and other manifestations. When the tiger’s mouth muscle throbbing, need to consult a doctor in a timely manner, after clarifying the condition under the guidance of specialists to carry out appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.