'''Scrotal''' (or '''transscrotal''') '''ultrasound''' is used in the evaluation of testicular pain, and can help identify solid masses.<ref name="GrahamKeane2009">{{cite book|author1=Sam D. Graham|author2=Thomas E Keane|title=Glenn's Urologic Surgery|url=https://books.google.com/books?id=GahMzaKgMKAC&pg=PA433|accessdate=1 July 2011|date=25 September 2009|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-9141-0|pages=433–}}</ref>
==IndicationsPlanning==Although the development ===How soon===*Signs of new imaging modality such as computerized tomography and magnetic resonance imaging have open a new era for medical imagingtesticular torsion: Emergency*Other pain, or high resolution sonography remains as the initial imaging modality of choice for evaluation of scrotal disease. Many suspicion of the disease processes, such as testicular torsioncancer in a young patient: Within 1 week*Enlargement, epididymosuepected hydro-orchitis, and intratesticular tumor, produce the common symptom of pain at presentation, and differentiation of these conditions and disorders is important for determining the appropriate treatment. High resolution ultrasound helps in better characterize some of the intrascrotal lesionsvarico- or spermatocele, and suggest a more specific diagnosispalpable induration, resulting in more appropriate treatments and avoiding unnecessary operation for some of the diseases.control after infection: 2 weeks to 2 months<ref namegroup="MakTzeng2012notes">{{NU Hospital Group}}</ref>
==Imaging technique==