Men’s urine odor is too heavy, considering that it may be related to drinking too little water, urinary tract infection, urinary retention and other reasons. 1. Drinking too little water: usually too little water, a lot of concentrated urine, may lead to urine odor aggravation. 2. Urinary tract infection: not paying attention to personal hygiene in general may cause urinary tract infections, such as cystitis and ureteritis. Inflammatory reaction will lead to an increase in secretion, which may also lead to urine with a foul odor. 3. Urinary retention: Diseases such as prostate enlargement, urethral stenosis, and urinary stones may affect the normal excretion of urine and lead to urinary retention. Urine retained in the bladder for a long time, bacteria growth and reproduction, may also lead to men’s urine odor is too heavy.