Cellulite appears when fat accumulates between the fibrous connective cords that tether skin to muscle. It is most common among women, with eight of 10 having some degree of the dimpling skin. It becomes more common with age as the skin loses elasticity. Thighs and hips are the most common areas to get cellulite, but it can show up on the belly too. While theories abound, there’s no known cause or quick cure for cellulite. Lifestyle and diet changes can help sufferers firm the belly and reduce the appearance of cellulite.