A painful bent second toe can be caused by trauma, but it can also be caused by diseases such as osteoarthritis and osteophytes, as well as other diseases such as gout. 1. Trauma: If the patient has had a bruise or a contusion on the foot, it will lead to the phenomenon of the second toe bending pain. 2. Osteoarthritis: the pathogenesis and etiology of osteoarthritis are not yet clear, and it is considered to be related to the patient’s age, obesity, heredity and other factors. The main symptoms of osteoarthritis patients are joint pain, joint stiffness and other symptoms. 3. Osteomalacia: Osteomalacia is mainly caused by the body’s self-protection and other factors, and the patient will have pain, limited joint movement and other symptoms. 4. Other: Gout, onychomycosis and other diseases can also lead to the phenomenon of second toe bending pain. There are many reasons for the second toe bending pain, you should consult a doctor in time and follow the doctor’s instructions for treatment.