They have different types of spots, like whiteheads, pustules, blackheads and nodules. Acne affects folks of all skin shades. The causes of acne are the same for people of different skin colors, but the impact of pimples is altered based on the pigmentation of the skin. People from Africa, native Australians, African-Americans and other islands are darker than their Northern European close friends due to the increased quantity of the dark pigment melanin in your skin.But she said her team’s findings point to a shorter-term advantage. We discovered 3D mammography does indeed help doctors find even more invasive breasts cancers while cutting down on callbacks, Friedewald said. A callback happens whenever a mammogram picks up something suspicious, and the physician wants to do additional imaging or a biopsy. For some women, as it happens to be nothing; according to the American Cancer Culture, fewer than 10 % of ladies called back for more testing are diagnosed with breast cancer.