The DIP joint is the main knuckle from the prime of the finger. It connects the distal phalanx and middle phalanx, which happen to be the two bones with the idea of the finger. Both osteoarthritis and rheumatoid arthritis can affect the hand and wrist, resulting in joint pain, stiffness, https://www.theorthopaedicandpainpractice.com/why-are-my-finger-joints-swollen-and-painful/