In traditional acupuncture, the acupuncturist decides which points to treat by observing and questioning the patient to help make a diagnosis according to the custom used. In TCM, the 4 diagnostic solutions are: inspection, auscultation and olfaction, inquiring, and palpation. Inspection focuses on the experience and notably about the tongue, https://allhealthmarket.com/product/beauty/acupuncture/acupuncture-electronic-pen/electronic-acupuncture-pen-tens-point-detector-pain-therapy-acupuntura-massage-meridian-energy-pen-muscle-stimulator/