Superior cluneal nerve entrapment (SCN) is a painful symptomatic condition related to compression by the thoracolumbar and gluteal bands of nerve outcrop, above the iliac crest. This syndrome is not considered in the classical differential diagnosis of lumbosacral spine disorders and is almost unknown in Italy. It is a neuropathic pain, acute, subacute, or chronic, evoked by mechanical stress at the level of the sensory territory corresponding to the superior cluneal nerve, easily found anatomically and evoked at a trigger point on the posterior iliac crest approximately 70mm from the midline and 45mm from the posterior superior iliac spine. SCN entrapment syndrome represents a not so infrequent syndrome. It is easily framed and treatment is effective in most cases. Therefore, diagnosis and treatment of this syndrome represents an excellent option in all those patients with low back pain that cannot be otherwise framed and resolved.