Hi! I'd like to know if dents in breast can be normal? I recently saw a lump on the upper outer quadrant of my right breast and a very small dent on my right breast underside. I got an ultrasound done and was told they are just normal tissues along with a small cyst. But the indentation has kept me worried. And this dent enhances when I press my chest with my arms and become faint when I flex my chest muscles.