Plantar and dorsal pain can be caused by muscle strain, fasciitis, rheumatoid arthritis and other reasons. 1. Muscle strain: If walking, sitting or standing for a long time, or local sports, lead to the soles of the feet, the dorsum of the feet at the muscle tissue is damaged, which will cause the symptoms of the soles of the feet and back pain. 2. Fasciitis: when the plantar muscle tissue is damaged or external stimuli cause aseptic inflammation of the soles of the feet, when the inflammatory factor stimulates the nervous system, the phenomenon of pain in the soles of the feet, when the inflammatory factor is released in large quantities and involves the other nerve tissues, which may lead to the symptoms of plantar instep pain. 3. Rheumatoid arthritis: when suffering from rheumatoid arthritis, it may lead to the destruction of blood vessels in the feet or irritation of the local joints, thus causing the symptoms of plantar and dorsal pain. When the symptoms of pain in the soles and back of the feet, it is recommended to go to the hospital for examination and diagnosis in a timely manner, under the guidance of a professional physician to carry out targeted treatment, so as to avoid aggravation of the condition, which will have an impact on the daily life and physical health.