Intra-articular injections of the scapulohumeral joint (SHJ) in horses are difficult to perform because of the thick muscles covering the area and a reduced articular space. Ultrasonographic guidance was demonstrated to be helpful to perform intra-articular injections. This technique applied to the SHJ can be performed in the field with a portable machine. The joint space is firstly imaged in transverse and proximodistal scans. After aseptic preparation of the shoulder area, the probe is placed to image the SHJ space in transverse section and the needle is inserted cranially in the ultrasound beam. The progression of the needle is followed towards the SHJ space, limiting joint injuries and side effects.