A patient of 18 years of age presents with sudden agonising pain in the groin and the lower abdomen. The patient feels nausea and gives a history of vomiting. On physical examination, the testis seems high. The cremasteric reflex is lost. What is the most possible cause?

Testicular torsion is most common between 10 and 25 years of age, although a few cases occur in infancy. Typically, there is sudden agonising pain in the groin and the lower abdomen. The patient feels nauseated and may vomit. Torsion of a fully descended testis is usually easily recognized. The testis seems high and the tender twisted cord can be palpated above it. The cremasteric reflex is lost