Sciatica is a term for pain in the sciatic nerve—a nerve streaming down both sides of the lower spine, through the pelvis, underneath the back of each leg, and into the feet. It generates pain and may contribute to the difficulty of sitting, standing, and sleeping.
Sciatica occurs when pressure irritates the nerve, generating pain in the buttock, thigh, or below the leg. Some report the pain as mild or sore, while others encounter a burning sensation and sharper pain. Numbness, tingling, and instability in the leg are common signs of sciatica. Symptoms typically manifest on just one side of the body.
According to a study reported in the Journal Orthopedics, 650 people were studied for sciatica, and 25% of them experienced lower back pain in the past six months. This statement explains how common sciatica is.