Figure 1.

Full medical history, partner interview, sexual history, some standardized questionnaires are necessary to make a preliminary diagnosis. Also, physical examination and some necessary laboratory tests are required to find the possible etiology of ED. The selection of unique inspection methods should be considered to those who were suspected of vascular ED and considering surgical treatment. ED, erectile dysfunction; IIEF, international index of erectile function; BP, blood pressure; HR, heart rate; FSH, follicle-stimulating hormone; LH, luteinizing hormone; PRL, prolactin; TSH, thyroid stimulating hormone; SAS, self-rating anxiety scale; SDS, self-rating depression scale; CDDU, color duplex Doppler ultrasound; MRA, magnetic resonance arteriography; CTA, computed tomography angiography; DICC, dynamic infusion cavernosometry and cavernosography; SWE, share wave elastography; PAT, peripheral arterial tonometry.