A herniated disc occurs when the soft inner material of a spinal disc pushes through a tear in the tougher outer layer. This can happen due to age, injury, or excessive strain on the spine. The herniated material can press on nearby nerves, leading to pain, numbness, or weakness in the back, legs, or arms. Symptoms of a herniated disc vary depending on its location and severity. Common signs include sharp pain, tingling sensations, and difficulty moving. Treatment options may include physical therapy, medication, or, in severe cases, surgery to relieve pressure on the affected nerves.