Hello Thanks for query . You have undergone surgery for removal of Spermatocele one week back and has noticed your testicle to be enlarged . During the surgery of Spermatocelectomy Testicle and Epididymis are dissected (Seperated )from the Spermatocele before it is removed . During dissection there is every risk of blood vessels getting injured causing hematoma to develop during immediate post operative period causing Testicle to get enlarged . I would suggest you to consult operating surgeon for revaluation and get Ultrasound Scanning of the Scrotum done to confirm or rule out possibility of Hematoma which if proved to be will need to be drained . You need to take broad spectrum antibiotic like Cefotaxime along with anti inflammatory drug like Diclofenac twice daily . Dr.Patil.