In the shoulder, a rotator cuff tear refers to a rupture of one or more of the tendons of one or more of the four rotator cuff muscles. Magnetic Resonance Imaging (MRI) is an effective method for diagnosing rotator cuff injuries, including tears. MRI can provide clear images of ligaments, tendons and muscles. Rotator cuff tears were diagnosed by MRI at King Salman Hospital and King Khalid Hospital in Hail. MR Unit with 1.5-T Siemens scanners was used to evaluate all patients with shoulder MRI protocol including fast spin echo sequence T1W & T2W was used. The fat saturating proton density (FSPD) can be obtained in four planes of imaging, namely axial, oblique, coronal, and sagittal oblique, three planes of axial, oblique, coronal, and sagittal oblique, as well as three planes of oblique. In this study, 50 patients were enrolled, ranging in age from 20 to 80 years, 28 of whom were males and 22 of whom were females. There were 61 to 80-year-old patients (40%) who were the oldest. Meanwhile, there were only 4 cases among the youngest patients between the ages of 20 and 30 (8%). Out of 50 patients, 28 were diagnosed with full-thickness tears (56%) and 22 cases were diagnosed with partial tears (44%) using MRI. The findings from this study suggest that MRI is highly effective for the detection of rotator cuff tears, both full-thickness tears and partial-thickness tears. In addition, it provides details regarding the tear, tendon retraction, joint effusion, and subacromial-subdeltoid bursa.