Intermittent stabbing pain in the lateral thigh like a pinprick may be caused by infection, trauma, fasciitis, lumbar spine disease and other reasons. 1. Infection: when bacteria, fungi and other pathogens infect the soft tissues of the outer thigh, it can cause intermittent stabbing pain in the outer thigh, accompanied by local redness, swelling, and elevated skin temperature and other symptoms. 2. Trauma: Trauma caused by muscle, nerve and other tissue damage can lead to intermittent stabbing pain in the lateral thigh. 3. Fasciitis: due to long-term strain injury caused by aseptic inflammation of the local fascia and other tissues, stimulation of the surrounding tissues, the patient may experience intermittent tingling pain in the lateral thigh, such as the symptoms of needle sticking. 4. Lumbar spine disease: common in the lumbar spine degenerative diseases such as lumbar disc herniation, lumbar spinal stenosis and other diseases, compression or stimulation of the lower limb nerves, can cause a lower limb radiating pain and numbness, will also appear in the lateral thigh intermittent tingling such as pinprick sensation. Intermittent stabbing pain in the lateral thigh like a pinprick may also have other causes, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.