Getting cosmetic surgery with NHS is not an easy task. First of all, the NHS makes a distinction between cosmetic surgery and reconstructive surgery. They claim that while the former is performed for aesthetic reasons, the latter one arises out of the need to correct certain abnormalities that can be congenital or caused by an accident. The basic requirement for getting cosmetic surgery with NHS is to prove that the procedure will improve the patient's life considerably.
Something to highlight is that it's possible to get cosmetic surgery with NHS for tattoo removals. Certified plastic surgeons argue that unwanted tattoos may have a negative impact on a patient's life, and so they offer cosmetic surgery with NHS.