**1. Terminology and definition**

The following terms and definitions apply to this standard.

#### **1.1 Fu's subcutaneous needling**

Fu's subcutaneous needling (FSN) uses disposable FSN acupuncture needle [1] as its tool to stimulate the subcutaneous layer [2] by doing horizontal sweeping manipulation. Needling sites are mainly selected around or near tightened muscles (TM) that cause pain or other illnesses [3–5].
