i had a mammo/ultrasound - they said it was fine - i still have a continuous itch just on the tip of my left nipple along with an odor, at times a crust forms over it like a fluid that is drying on it, along with a sharp pain shooting through it, as well as being inverted...i am now 45 and am worried as i have heard that this could be a sign of something - but no one will answer the question - they just joke and tell me it is nothing - what are the causes of this and should i be concerned?





