The reason why the glans is smelly may be that it is not cleaned in time, the foreskin is too long, glans inflammation, unclean sex life, and so on. 1. No timely cleaning: will make the glans produce odor, just need to be carefully cleaned in place, can be solved. 2. The foreskin is too long: there will be secretions in the normal foreskin cavity, if the foreskin is too long, or there is the phenomenon of phimosis, the foreskin will wrap the glans and the coronary groove. If the foreskin is not cleaned for a long time, the foreskin scale produced inside the foreskin will stimulate the glans for a long time, and the glans will also be very smelly phenomenon. 3. glans: glans often co-exist with the foreskin, collectively known as the foreskin glans, generally due to external stimulation or pathogen infection. Clinical manifestations of local redness, swelling, ulceration, etc., will also be infected with the urinary system, causing other symptoms. 4. unclean sex: the glans is infected with Candida albicans, mycoplasma, chlamydia and so on will cause the phenomenon of glans is very smelly. If the cause of the glans is not clear, it is recommended that the patient go to a regular hospital for examination, do not blindly treatment, avoid unauthorized use of drugs.