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During routine dissection of a 60- 65 years old Caucasian, male cadaver, we found that the ulnar artery is coursing superficially on both forearms. These superficial ulnar arteries (SUA) were originating 2 cm above from termination of the brachial arteries and were running superficially to the flexor muscles in forearm. The brachial artery was terminated in the cubital fossa and divided as radial, common interosseal and recurrent radial arteries. Variations of arteries, muscles and nerves of the upper limb are well documented. Variations of the radial artery is most frequent arterial anomaly of the forearm (15,6%), whereas the prevalence of the superficial ulnar artery is less frequent and given as the percentage of 0.7-9.4. Furthermore, its bilateral prevalence is very rare (0.01-0.62%). If it is present, the superficial ulnar artery is vulnerable to traumas which may be a cause of hemorrhage and it may be risk for misguided intra-arterial injections that may be a cause of ischemia, even non-reversible necrosis and gangrene in the distal portion of the forearm. Additionally, SUA may be valuable for arterial cannulations and harvesting fasciocutaneous forearm flaps. [ABSTRACT FROM AUTHOR]