Objective: Aim of this study is presenting of young adults which were referred to our clinic from their military units because of their upper extremity soft tissue masses.

Materials and Methods: In this study upper extremity soft tissue masses of 20-30 years old young adults who were referred to our clinic between November 2014 and November 2015 from their military units were examined according to histopathological diagnosis, size and localization.

Results: 77 lesion from 77 young adults were examined. According to histopathological determination it was reported that 28.6% of lesions were epidermoid cysts, 27.3% of lesions were ganglion cysts, 18.2% of lesions were hemangioma, 14.3% of lesions were lipoma, 5.2% of lesions were tenosynovial giant cell tumor of tendon sheath,3.9% of lesions were schwannomas and 2.6% of lesions were extraskeletal chondroma. According to location of lesions it was seen that 13% of the lesions were located in arm, 13% in forearm, 38.9% in the palmar part of the hand and 35.1% of lesions were on fingers. According to size of the lesions it was measured that 49.3% of the lesions were 0-1 cm, 22.1%; 1-2 cm, 20.8%; 2-3 cm and 7.8% were under 3 cm.

Conclusions: Benign soft tissue masses of upper extremity can be symptomatic in intensive physical activity period as military service and these are common reason of referring soldiers to hospitals. These lesions are more symptomatic even in smaller sizes when they appear at the distal part of extremity and may be excised from distal part of extremity.