The body works as a single connected system.
Through layers of fascia, shared nerve pathways, and coupled mechanics, what happens in one region produces effects in another — a stuck mid-back showing up as a sore shoulder, a tight diaphragm contributing to low-back pain. Modern manual therapy calls this "regional interdependence," and it's now standard in physiotherapy and orthopaedic research. Osteopathy has worked this way since the 1890s.
In practice, an osteopath assesses well beyond the painful site — the joints above and below, the fascial chains that connect them, the breath, sometimes the viscera or the cranial base. Sleep, stress, old injuries, and the way you move through your day all feed into what shows up in the tissue today.