Why do my nipples itch?

Many possibilities: This can be anything from clothing rubbing (a hazard especially of joggers) to using a new kind of bath soap to early pregnancy or a new medication. If there is any visible anatomic change on one nipple, a physician should look at it to rule out paget's, an early warning of malignancy, but this very seldom involves both at once.

ITCHY NIPPLES: Change your soap to a mild cleanser like cetaphil. Change your laundry detergent to all-free & clear. Don't use any creams or lotions on your chest. Sometimes cotton shirts can cause this, particularly if you run or work out. This is known as "jogger's nipples.".

Dry moisturizer: Very sensitive skin and most common cause is dryness. Try over the counter Hydrocortisone cream for a couple of weeks. If the itching persists, particularly if it is on only on one side, see a dermatologist.

Dryness: Typically due to dryness an a bit of inflammation from friction and clothing. If no nipple discharge or breast pain, apply vaseline an avoid rubbing with clothing.