The main reasons for this are as follows: 1. The problem may be caused by inflammatory stimulation, after pregnancy, if you do not pay attention to personal hygiene, it is easy to gynecological inflammation, after stimulating the vagina will produce too much vaginal secretions and thus will appear urinary odor symptoms. 2. The problem may be caused by urethritis, the female genitalia and urethral opening are very close to each other. The woman’s genitalia and urethra are close to each other, and the urinary tract infection will affect her body and cause an inflammatory reaction. When this situation occurs, it is recommended that women pay more attention to cleaning the vulva, after pregnancy, you can use warm water to wash the vulva every day to reduce the breeding of bacteria can also avoid the emergence of various diseases, during pregnancy can be properly hydrated for the benefit of the body.