Pins and needles pain in the lower back may be caused by dermal neuritis, herpes zoster, intercostal neuralgia and so on. 1. Dermal neuritis: when the dermal nerves around the waist, due to various reasons of aseptic inflammation, it can be manifested as a pinprick pain in the waist, or a burning or ant-crawling sensation. 2. Herpes zoster: Herpes zoster is caused by the activation of varicella zoster virus latent in the body, caused by skin damage, can be manifested as a pinprick pain on the side of the waist, with the development of the disease, there can be clusters of blisters with a band-like distribution. 3. intercostal neuralgia: lumbar intercostal nerve stimulation can lead to intercostal neuralgia, often pinprick pain, but also for hidden pain, radiating pain and so on. There are many other causes of lumbar pain, only a single symptom can not accurately determine the cause of the disease, it is recommended to improve the relevant examination, a clear diagnosis of the treatment, so as not to cause adverse effects.