Quadriceps tendonitis can be considered to be treated with small needle knife. Small needle knife is an external therapeutic method developed on the basis of traditional acupuncture therapy in Chinese medicine, which has the effect of stimulating the meridians and collaterals, loosening the local adhesions of the lesions, and relieving muscle spasm. The technique can be used as an adjunctive treatment for frozen shoulder, lumbar spondylosis, soft tissue injury, bursitis and other conditions. It should be noted that when using small needle therapy, it is not suitable for patients with skin infection, coagulation dysfunction and skin diseases. Quadriceps tendonitis patients, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the treatment, not to operate on their own, so as not to delay the condition.