When a mans semen turns a color it can sometimes mean blood is in the semen. See a doctor just to rule out any possibilities of testicular cancer.
If My Husband's Sperm Is Lumpy And Like A Tan Clear Color What's Wrong?
It usually means that he hasn't been washing his little man after experiencing bum fun with other human beings. Or in some country's it may have been with the prize pig. This happened to my boyfriends ejaculate, and two weeks later I found out he had been sleeping with the family dog. Hope this helps.