Breast enlargement surgery will leave small scars under the breasts which fade, often taking up to 18-months. Until this time they are often red and firm. Regular scar massage and moisturising is important to help the scars mature and settle down as quickly as possible. Hypertrophic or keloid scars can occasionally occur – these are thickened and lumpy scars that are more common in people of Asian or Afro-Caribbean descent.