Usually there are other reasons for the skin changes, but we do recommend evaluation, especially if these are new, persistent or worsening. Skin changes that cause worry include: 1  Skin puckering or dimpling. 2  Nipple inversion (when nipples indent, or seem to turn inward). 3  Thickened skin tissue, with enlarged pores (known as peau d'orange, French for orange peel, which it resembles). 4  Warmth, pain or redness of the skin.
For example, a fruity breath odor is one of the characteristic symptoms of diabetic ketoacidosis, which can be fatal within hours or days. Another example is a fecal breath odor which can indicate certain types of intestinal blockage.
Halitosis smells like hydrogen sulfide, the smell of rotten eggs. That is, it usually smells like that, although other unpleasant or unusual odors can be noted, and when there is a metallic smell bad breath is probably due to something a little more unusual.