Theoretical and practical development of Fu's subcutaneous needling for pain treatment: Novel integration between traditional wisdom and modern medicine

Fu’s subcutaneous needling (FSN) represents a non-pharmacological therapy that employs disposable needles for subcutaneous application, primarily targeting the relaxation of tightened muscles, invigoration of blood circulation, and alleviation of local tissue ischemia. Originating from traditional acupuncture and modern techniques, FSN effectively treats muscle-related conditions, including soft tissue injuries, neck-shoulder-back pain, visceral pain, and non-painful diseases. Its unique features encompass shallow needling, the swaying movement technique, and an emphasis on governing the spirit. FSN is characterized by rapid therapeutic responses, high repeatability, and minimal side effects, adhering to the keep it simple, stupid (KISS) principle in research by emphasizing simplicity and efficacy. By mechanically releasing chronic muscle tension, FSN improves arterial blood flow, halts pathological leakage of intracellular adenosine triphosphate (ATP), and consequently resolves pain. This therapy offers a promising and safe approach for pain management and muscular health, deserving vigorous promotion and further scientific investigation.