Breast cancer treatment is generally associated with side effects that may develop either because of the treatment or the disease itself. They may be long-term in nature and may continue even after the treatment is over. Some such side effects post-treatment/surgery include: Headaches Fatigue Numbness or Pain Dental issues Musculoskeletal symptoms Lymphedema Bone loss and osteoporosis Secondary Cancers Heart problems Blood clots Cataracts Menopausal symptoms Absence of menstrual periods Infertility Sexual difficulties Memory loss Loss of cognitive functions Some of these could be late side effects and may start appearing weeks, months or even years after completing the breast cancer treatment. They can be however addressed by maintaining a healthy lifestyle after the treatment.