The normal male will usually ejaculate some milky white liquid, sometimes with a fishy smell, like the smell of chestnut blossoms, in this case is usually normal, this is due to a chemical of semen ammonia in the prostatitis, do not need to worry too much. If there is an odd smell, you have to go for treatment. Semen will have a more significant smell than other fluids, unlike other fluids that are pure, it is a mixture. The main component is a combination of prostate fluid and seminal vesicle fluid, urethra and many other secretions. If there is an inflammation of the prostate gland or if there is an inflammation of the vagina, there is usually a foul odor of semen. And if the inflammation is not treated early, it will lead to further deterioration of the inflammation, which will cause a kind of infertility to occur. You should actively go to the regular hospital for relevant examination, do not affect your reproductive health, and in general must pay attention to personal hygiene, keep the local cleanliness.