There are many causes of pain in the patient’s second toe, the common ones are joint inflammation, bacterial infection, bunions, and external forces, etc., as follows: 1. Joint inflammation: Patients with rheumatoid arthritis, rheumatoid arthritis, gouty arthritis, and osteoarthritis can cause significant painful symptoms in the second toe. 2. Bacterial infection: It can lead to significant local redness, swelling, and pain. 3. Bunion: especially severe bunion, which causes the patient’s second toe to ride across, can cause the second toe to have obvious pain symptoms. 4. External force: can cause tendon injury, joint capsule injury, fracture, dislocation, etc., which can cause the second toe to have obvious pain symptoms.