Most of the odor from the glans is related to bad hygiene habits, circumcision, phimosis, and so on. 1. Bad hygiene habits: long-term failure to bathe or wash the lower body, or long time without changing underwear, will lead to the phenomenon of bad smell of the reproductive organs, including the glans. 2. circumcision glans: glans odor may also be caused by glansitis, odor is localized infection pathogens reproduction and proliferation of secretions emitted by the secretion. For example, gonococcal urethritis, glans, genital herpes and so on will lead to glans redness, edema, odor, serious patients will also have a bad smell. It is recommended that patients seek medical attention in time and follow the doctor’s instructions for treatment. 3. The foreskin is too long: so that the secretion of the foreskin can not be discharged, a large number of accumulation in the foreskin cavity, the formation of foreskin scale, for the breeding of bacteria to create an environment, there will be a bad smell. After the glans odor exclusion of physiological factors, it is recommended to seek timely medical treatment, under the guidance of the doctor to take treatment. Daily attention should be paid to personal hygiene, showering and changing clothes.