The most common causes of pain when the plantar tendon is pressed are trauma, plantar fasciitis, bone spurs and so on. 1. Trauma: If the patient’s plantar fascia is subjected to external impact, it is prone to localized inflammatory reaction, manifested as redness, swelling and pain, acute injury usually requires ice packs. 2. Plantar fasciitis: If the patient’s plantar fascia is overstressed for a long time, it is easy to have small tissue tears, which leads to inflammatory reaction and pain when pressing the plantar. 3. Bone spurs: Bone spurs are usually associated with long-term extrusion or friction and other factors, the formation of bony growths on the edge of the normal bone, bone spurs on the soles of the feet can cause pain in the surrounding soft tissues. Causes of plantar big tendon pain when pressed are more reasons, may also be associated with Achilles tendonitis, gout, heel fat pad inflammation and other reasons, if the symptoms are not relieved after resting, it is recommended to go to the hospital in a timely manner to find out the cause of the disease, and targeted treatment by the doctor.