Doppler tests are advanced diagnostic urodynamic tests that are advised for men living with erectile dysfunction, resulting in infertility. The doppler examination is done using sophisticated tools to examine the blood flow to the penis and determine the reason for the dysfunction of the penis in getting erected. Erectile dysfunction is a medical condition in men that prevents them from attaining an erection despite receiving sexual stimulation. Failure to get erected renders the penis flaccid even during intercourse, due to which penetration cannot occur.