Background: Because of day to day increasing frequency of sport injuries that lead to MENISCAL tears and several complications of meniscectomy and open surgery, and also with respect to the successful reports of arthroscopic repair of MENISCAL tears seen in different journals, the present study was performed over the patients with MENISCAL tears, referring to Akhtar and Mehr hospitals since 1997 till 1999. Materials and methods: In this clinical trial, patients were selected according to the clinical manifestations (pain, swelling, locked knee, feeling of giving way) or physical examination (McMurray, Lachman, Pivot shift, Anterior Drawer, difference of the quadriceps muscle diameter, and joint line tenderness). Patients were left out if radial and complex MENISCAL tear were revealed during arthroscopic examination. Results: 24 patients, including 20 males and 4 females, with the mean age of 23.8 years had entered this study. Symptoms were averagely manifested for 4.3 months (2-7 months) and 67% of the cases had previous athletic activities. Arthroscopic measured tear was 28.9±6.4 7 mm. Tear in the red-white zonw was reported in 10 cases (41.7%), whereas, red-red and white-white zone tears were recorded in 8(33.3%) and 6(25%) cases, respectively. Longitudinal tears were seen in 16(66.7%), whereas, bucket-handle was reported in 8 cases (33.3%). Fibrin clot was used in MENISCAL repair of 67% of the patients and ACL reconstruction was achieved in 21 % of the cases as well as MENISCAL repair. Conclusion: Patients were followed for 13.2 months (12-18 months) and out side-In technique was managed for MENISCAL repair. 8 patients (33.3%) were pain free before the study, but after that they have increased to 19 (79.2%). The difference was statistically significant. Swelling was reported in one case after the operation and feeling of giving was persisted in 6 cases (25%). Joint line tenderness and locked knee were not seen and wasting of quadriceps was significantly occurred. Mcmurray, Anterior Drawer and Pivot shift tests were negative but Lachman test was positive in one patient undergone ACL and MENISCAL repair. Range of motion was normal pre- and postoperatively. MENISCAL tears seek immediate management and arthroscopy seems to be useful and safe.