Abstract： Objective To analyze the features of cutaneous lesions and age of onset of tuberous sclerosis(TS).Methods A total of 54 TS patients were recruited;their clinical data were analysed.Results The occurance of facial angiofibromas,periungual fibromas,hypomelanotic macules and shark macules was 72.5%,26%,70%and 48%,respectively,and the median age of onset of these lesions was 7,14,0.2 and 6 years,respectively,with a peak at 1-9,10-19,＜1 and 1-9 years,respectively.Conclusions Cutaneous lesions are commonly seen in TS,and most of them develop early in life.