Paget–Schroetter syndrome (PSS) is a form of effort thrombosis seen in young athletes and individuals with occupations involving repetitive upper limb movement. Arm swelling, distended veins, skin discoloration, and pain are characteristics of it. Diagnosis can be made with non-invasive investigations, such as Doppler ultrasound; however, a computed tomography venogram, magnetic resonance venogram, or traditional venogram may be required. Treatment involves anticoagulation, thrombolysis, and surgical decompression with removal of the first rib, and this is usually met with good outcomes. We present a young female diagnosed with PSS and requiring a staged multidisciplinary approach to treatment.