Varicocele is the result of reflux in the veins of the spermatic cord, a problem with the valves, which eventually leads to tortuous dilatation of the veins of the spermatic cord. How to check? Firstly, it can be examined by physical examination, the patient takes the standing position, the dilated blood vessels can be touched or seen by touching the spermatic cord, and the dilated blood vessels can be disappeared when the patient is lying down. In addition, you can also take ultrasound method, ultrasound can detect whether the spermatic vein is varicose or not, at the same time can be Valsalva test to see whether the vein will reflux. Of course, the most accurate is to check by venography, venography is invasive, because it is necessary to insert a catheter into the vein, and then let the patient inhale and hold his breath after the contrast agent, to see if there is any obvious reflux, and this method is not necessary to be carried out as a last resort. How to check out varicocele can be done by physical examination and ultrasound.