Nerve Irritation: Nerves travel from the spine into the arms and legs. When a nerve becomes irritated in the neck or lower back, pain may travel into the shoulder, arm, hand, hip, leg, or foot.
Joint Stress or Injury: The shoulder and hip are highly mobile joints that are used constantly throughout the day. Overuse, impact, poor mechanics, or injury can lead to pain and limited motion.
Repetitive Motion: Work tasks, sports, typing, lifting, reaching, standing, walking, or tool use can place repeated stress on the arms and legs, leading to irritation over time.