Cosmetic surgery is performed to reshape the face and body in order to improve appearance and self-esteem. Cosmetic surgery is performed when no medical condition has contributed and is not covered by health insurance. Reconstructive surgery is performed when a medical condition has lead to a change in the face or body such as breast reconstruction after cancer, hand surgery, skin cancer reconstruction, trauma, congenital or developmental abnormalities, and gender reassignment. In general, reconstructive surgery is performed to improve function, but may also be completed to approximate a normal appearance. Many of these procedures are covered by health insurance, although the coverage varies.