The single more important reason for cellulite looking worse in the summer is water retention. Water retention, one of the seven aspects of cellulite, can become worse in the heat of the summer due to vasodilation. In turn, water retention makes the cellulite “bumps” to become enlarged and thighs and buttocks, in general, to become puffy. Water retention can also lead to increased low grade inflammation, another one of the seven aspects of cellulite (the other five being fat accumulation, skin laxity, fibrosis, oxidative damage and glycation)….