Small acupuncture is a closed-loop procedure between surgical and non-surgical methods, and is a closed minimally invasive surgical treatment without surgery. It is formed on the basis of the incisional surgical method combined with the needling method. The operation of small needle knife therapy is characterized by stabbing deep into the treatment site to the lesion for easy cutting, peeling and other stimulation to achieve the purpose of pain relief and dispel the disease. Its indications are mainly soft tissue injury lesions and bone and joint lesions. Small needle knife therapy can loosen tissue adhesions, eliminate hard knots and cords, reduce tissue pressure, improve blood circulation, promote inflammation, accelerate edema absorption, release vascular nerve compression, achieve the purpose of anti-inflammatory analgesia, remove numbness and restore function. The advantage of small needle knife therapy is that the treatment process is simple and not restricted by any environment and conditions. The treatment incision is small, no sutures, and the damage to human tissue is also small, and it is not easy to cause infection, no adverse reactions, and the patient has no obvious pain and fear, no need to rest after the operation, the treatment time is short, the course of treatment is short, and the patient is easy to accept. Indications for small needle knife therapy: 1, frozen shoulder, tennis elbow, tenosynovitis, aseptic necrosis of the femoral head, knee spur, heel pain; 2, osteophytes in various parts, osteoarthritis, ankylosing spondylitis, osteoporosis, migraine, vertigo; 3, postoperative cervical and lumbar spine syndrome, cervical spondylosis, lumbar disc herniation (bulging, spinal stenosis), sciatica, etc.