Body odor is often a product of the metabolism of bacteria that live on our body skin. Diabetes, for example, is one of the most common factors that can affect body odor.
Bad breath that just won't go away shouldn't be ignored, says Dr. Jennifer Caudle. A vagina with a fishy smell could be a sign that you have bacterial vaginosis (BV), a bacterial imbalance that may need to be treated with antibiotics, Dr. Caudlle said.