I was giving my self a breast exam like my mother told me to do and I found a knot and it hurts to touch bout the size of a dime what do I do?

USPST. 28 year old lady with question about self breast exam. The United States Preventative Services Task Force has now recommended against teaching women self breast exam. Clinical Breast Exam with an experienced provider is recommended, however, if you discover something worrisome, especially if you have family history of breast cancer. Please see your MD for a referral. Good luck.