Finger nail odor is usually due to not pay attention to hand cleaning, nail groove inflammation, nail fungus and other reasons. 1. Do not pay attention to hand cleaning: If the nails are left too long, resulting in more dirt retained in the nail crevices, long time not cleaned up will cause the dirt to rot or fermentation, which in turn produces a bad smell. Regular trimming of nails is recommended. 2. Inguinitis: mainly due to bacterial infection. It can be manifested as localized pus and swelling at the nails, and even accompanied by foul smell, so you can also smell the odor at the nails. Need to cooperate with the doctor to use antibiotic treatment, such as cefixime and other drugs. 3. Ringworm of the nails: usually due to fungal infection of the nail area, can make the nail seam at the keratin is decomposed, local tissue ulceration, thus emitting a distinctive odor. In short, if the odor of the fingernail is caused by pathogenic bacteria infection, it is recommended to consult a doctor in a timely manner and follow the doctor’s instructions for treatment. In daily life, pay attention to the cleanliness of the hands, cut the nails and wash hands frequently.