Does every man pre-ejaculate?
yes We assume that every man produces pre-ejaculate, but there are exceptions to every rule. Some men produce large amounts when excited, others produce hardly any.
There tends to be much less viable sperm in preejaculate than in actual ejaculate at the end of sex. However, it often contains enough sperm cells to cause pregnancy. Do keep in mind that any fluid from the penis during sex can spread disease. So to help prevent diseases and pregnancy, condoms are always recommended.