Doctors can usually diagnose Peyronie's disease based on a physical examination. The plaque is visible and palpable, whether the penis is flaccid or erect. Full evaluation, however, may require examination during erection to determine the severity of the curvature. The erection may be induced by injecting medicine into the penis or through self-stimulation. Some men with Peyronie's may eliminate the need to induce an erection in the doctor's office by taking a digital or Polaroid picture at home.
When diagnosing Peyronie's disease, the doctor may also recommend an ultrasound scan of the penis to pinpoint the exact location and extent of the plaque and evaluate blood flow throughout the penis.
(Click Peyronie's Disease for more information about this condition.)