Cleaning a horse's sheath is needed to keep your horse comfortable and healthy. All male horses need this done at least once or twice a year as general heath care of the horse.
NOTE: DO NOT USE OILS, VASELINE OR CHEMICALS - this is very sensitive area and you can cause swelling, damage and create huge problems. Plain water, very mild soap or commercial product designed specifically for this procedure.
This video is only step, make sure and watch Part 2, finding the bean since missing this can cause the horse discomfort and other issues. I also suggest you read my section on my website about this where I have pictures and graphics that help explain this.