The reasons for the tendon pain inside the legs are as follows: 1, the tendon pain inside the legs may be due to a lack of calcium, and there will be cramps, patients can take more calcium-containing food, such as eating more bone broth, seafood or eating some calcium tablets, as much as possible in daily life more sunshine, to promote the synthesis and absorption of calcium. 2, the tendon pain inside the legs may also be due to injury caused by prolonged exercise, when Those bones or muscle lesions will also appear tendon pain phenomenon, you can choose to go to the hospital for X-ray examination, you can also choose to use MRI assisted treatment. Patients with tendon pain are generally unbearable, you can choose to take pain medication, such as ibuprofen, diclofenac sodium, the dosage of drugs must be taken in strict accordance with the instructions to avoid patients taking too much to cause other adverse consequences.