It could be undigested food and parasites. Try to get your colon and digestive track working properly and then keep clensing and get on a protocol to kill the worms. Probiotics and goat colustrum are good for the colon. Do u have diareah or comstipation? Mattk3 has a good protocol you can try to restore your health. If its parasites in your scrotum they will hatch and spread.