We report a case of a post-aspiration giant unilocular spermatocele in a young man. A 27-year-old man sought medical advice for a huge right scrotal swelling. The swelling first appeared following scrotal trauma and was aspirated. Shortly after, it reappeared and persisted for several years with a sense of heaviness, infrequent periods of right scrotal pain, and cosmetic concerns. Ultrasonography of the scrotum revealed a huge fluid cyst pushing the testis antero-inferiorly in the right hemi-scrotum. Scrotal exploration suggested the spermatocele nature of the cyst that emerged from the head of the epididymis. The cyst was excised, and its fluid content and wall underwent pathological examination for confirmation.