This test is based on the 5-Item version of the International Index of Erectile Dysfunction (IIEF-5), which is used worldwide to assess the level of erectile dysfunction in male patients. Now Pillwatch.com offers the self-diagnosis inter-active tool for its visitors. Please choose the answer for each question, that characterizes best your sexual experience over the past 4 weeks to estimate the condition of your sexual performance. Be sure to visit a doctor for a complete examination in case your suspect any erection problems.