Elbow pain feels inside the tendon pain, may be related to overstrain, may also be due to humeral epicondylitis, elbow joint fasciitis and cervical spondylosis and other causes. 1. Excessive strain: For example, if you are engaged in lifting or pulling heavy objects for a long time, or if you play badminton for a long time, it is easy to cause the elbow tendon attachment point to be stimulated by external force for a long time, resulting in localized congestion and edema, which may cause elbow pain, and you feel the tendon pain inside. 2. Epicondylitis of the humerus: clinically known as tennis elbow, the disease can lead to aseptic inflammation of the tendons of the elbow joint, under the stimulating effect of inflammation, it may cause elbow pain, feel the tendon pain inside. 3. Fasciitis: the disease is usually caused by staying in a cold and wet environment for a long time, or long-term over-activity of the elbow joint. Stimulated by inflammatory products, it may cause elbow pain, feel the tendon pain inside. 4. cervical spondylosis: cervical spondylosis in the nerve root type cervical spondylosis can be due to spinal cord nerve compression and stimulation of nerve pain in the upper limbs, resulting in elbow pain, feel the tendon pain inside the symptoms. Elbow pain, feeling inside the tendon pain, may also be caused by other reasons such as elbow fractures and bone tumors, etc. If the symptoms continue to be unable to alleviate, it should be taken seriously, as soon as possible to seek medical attention, diagnosis of triggers, to give targeted treatment.