Pre-cum
Also known as pre-ejaculate, a small amount of fluid that is made in the Cowper’s gland and that comes out of the tip of the penis shortly after a boy or man gets an erection. It is designed to clean the urethra of urine and coat the walls to increase the chances of sperm surviving once they are ejaculated. Some males always have sperm in their pre-cum and others never do. Any sperm that is found in pre-cum is not likely to cause pregnancy. Pre-cum can transmit a sexually transmitted disease.