The soreness of the interphalangeal pressure may be related to the following causes: 1, excessive fatigue here. This condition is seen in the excessive gripping activities of the hands, such as holding some instruments, tools for excessive work, which can lead to excessive fatigue of the muscles here, and then produce pressure pain. 2, muscle spasm. This kind of lesion is due to excessive mental tension, or some bad posture, resulting in long-term muscle tension, and then produce a spasm, there will be very obvious soreness. 3, tendon lesions. For example, long-term overuse of the thumb may cause inflammation of the tendons and tendon sheaths on the palmar side of the thumb. In this case, in addition to the soreness, there will also be a snapping sound during the movement of the thumb. 4. Peripheral nerve entrapment. For example, if there is trauma, cold, long-term compression, etc. in the interphalangeal or palmar heel, it may cause the nerve to be compressed, resulting in painful pressure on the interphalangeal area.