Epididymo-orchitis and Reiter's disease. Two infrequent complications after intravesical bacillus Calmette-Guérin therapy.

Two cases of adverse reactions to intravesical treatment with bacillus Calmette-Guérin are reported. The first patient presented with a severe suppurating epididymo-orchitis three months after his last treatment. The second patient developed Reiter's disease with arthritis of one knee and conjunctivitis 1 week after the fourth instillation.