The purpose of the study is to determine the effectiveness of cognitive-behavioral therapy on functional outcomes, pain, and pain-related anxiety in patients with chronic nonspecific low back pain

Back pain has considerable negative effects on the quality of life of affected individuals. Individuals with new-onset back pain have an increased risk of lower quality of life scores, and the negative effect on quality of life increases with persistent pain. Patients with chronic back pain report a quality of life that is lower than individuals without pain and that is comparable to those of individuals with life-threatening diagnoses. In addition, back pain is associated with worry and fears, particularly about the (sense of) self and socialrelationships and especially when pain persists longer than expected.

Inclusion Criteria:

1. Thirty patients with non-specific chronic low back pain from both sexes will be included.
2. Subjects with normal body mass index (18 to 25).
3. The age of patients range from 20 to 35 years.
4. Duration of pain more than 3 months up to 2 years.
5. Normal cognition score 26 or above according to MoCA Scale.7. Highly educated at least high school.

Exclusion Criteria:

The patients will be excluded if they have any of the followings:

1. Lumbar canal stenosis.
2. Lumbar discogenic lesions.
3. Any inflammatory arthritis, tumors, infection involving the lumbar spine.
4. Patients with decreased range of motion secondary to congenital anomalies, muscular contracture or bony block.
5. Previous lumbar surgery or trauma.
6. Subjects with a history of any neurologic disease.
7. Cauda equina Syndrome.
8. Patients suffering from psychological, cognitive or emotional disturbance.
9. Patients who had previously participated in cognitive behavioral therapy.
10. Deafness and blindness.