Chronic testicular pain
Chronic testicular pain is long-term pain of the testes. It is considered chronic if it has persisted for more than three months. Chronic testicular pain may be caused by injury, infection, surgery, cancer, varicocele, or testicular torsion, and is a possible complication after vasectomy. IgG4-related disease is a more recently identified cause of chronic orchialgia.
One author describes the syndromes of chronic testicular pain thus: