Hello, I have a small problem; there is red blood in the semen, it is bright red and not old blood. Also, there was a large amount of blood in the semen,not a small amount, all the fluid was red. Also, there is a drawing sensation in the right testicle causing discomfort to the scale of a 2-3 with 10 being the max. The question is what causes the blood in the semen and to what degree is this serious? Thank you.