A CBE also known as a clinical breast exam should ideally be performed by a physician or nurse practitioner, because there is a certain technique to check your breasts for lumps and masses. Women are encouraged to check their breasts at any time not just after their menstrual period for changes or if they find a lump that wasn’t there before. Then they could make an appointment and bring it to the attention of a professional to have it professionally checked, it is a good screening tool when done correctly but doesn’t hurt to do it yourself.
This is an answer from an adult woman not a book but it is what I was taught and it is to be true. Hope that helps
