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The National Institute for Health and Care Excellence (NICE)'s independent committee has called for more research to ensure liposuction for treatment of chronic lipoedema is safe and effective enough for use on the NHS. Lipoedema is more prevalent in women and very rarely affects men. It is characterised by an abnormal, usually symmetrical, accumulation of fat in the legs, hips, buttocks, and occasionally arms. It is a separate condition to obesity and lymphoedema. The cause of lipoedema is unknown, but hormonal changes, weight gain and genetics are thought to be involved. The size and shape of legs, and the resultant mobility issues and pain, can have a profoundly negative effect on quality of life, and physical and mental health. The interventional procedures advisory committee reviewed evidence from several sources, including eight before-and-after studies. The committee was informed that several different liposuction techniques are used and that they may have different safety and efficacy profiles.