A 14-year-old girl with a bad smell down there may have bad personal hygiene, gynecological diseases, clothing allergies, and so on, and may also have a bad smell due to increased secretions. 1. Bad personal hygiene: not paying attention to vulvar hygiene and cleanliness, underwear and panties change less often, vaginal secretions accumulate on top of the panties, which will emit an unpleasant odor. 2. Gynecological diseases: when there is vaginitis, there may be a bad smell, and the color of the leukorrhea will be abnormal, and there may even be soya bean dregs, pus-like or bloody secretions, which can be treated with topical medications, such as metronidazole or mycotoxin tablets. 3. Clothing allergy: some women’s skin allergy, when replacing new underwear, underwear material is uncomfortable or lead to skin allergies, then it will make the lower body odor, and may be accompanied by itching symptoms. In addition, girls should pay attention to vulvar hygiene, wash the vulva with warm boiled water every day, change underwear diligently, when there is obvious odor in the pubic area, especially when accompanied by abnormal vaginal secretions, you need to go to the regular hospital in a timely manner to the doctor to give professional doctors to give examination, such as vaginal secretion examination, pelvic ultrasound, etc. Clearly caused by the cause of the smell of the odor, and then targeted treatment with medication.