OBJECTIVE To study the prevalence of menopausal symptoms of women attending the menopause and gynecology clinics at Chulalongkorn Hospital. METHODS A descriptive study was conducted at the menopause and gynecology clinics at Chulalongkorn Hospital. After inclusion and exclusion were done, four hundred and twenty seven participants with premenopause, perimenopause and postmenopause were studied. All the women were classified into seven groups of premenopause, perimenopause and one, two, three, four and > or =five years after menopause. The interview was performed by well-trained social workers using standardized questionnaires. RESULTS The average age at menopause of the postmenopausal women was 49.46 + 3.30 years. Prevalence of vasomotor symptoms eg. hot flushes in premenopause, perimenopause and one, two, three, four and > or =five years after menopause were 4.4 per cent, 25 per cent, 27.3 per cent, 38.8 per cent, 40 per cent, 11.1 per cent and 10.3 per cent, respectively. Prevalence of psychological symptoms eg. moodiness were 26.5 per cent, 25 per cent, 54.6 per cent, 38.7 per cent, 32.2 per cent, 11.2 per cent and 11.8 per cent, respectively. But the prevalence of headache in this category was 29.4 per cent, 23.3 per cent, 23.7 per cent, 22.6 per cent, 25.0 per cent, 11.1 per cent and 13.2 per cent, respectively. Prevalence of urinary symptoms seemed to increase continuously after menopause. Prevalence of genital symptoms eg. vaginal dryness were 5.9 per cent, 13.3 per cent, 25.5 per cent, 25.8 per cent, 15.0 per cent, 16.7 per cent and 20.6 per cent, respectively. Prevalence of other symptoms eg. muscle and joint pain were 22.1 per cent, 43.3 per cent, 56.4 per cent, 58.0 per cent, 45.0 per cent, 27.8 per cent and 28.0 per cent, respectively. CONCLUSIONS The prevalence of menopausal symptoms in this postmenopausal group appeared to increase during the first and second years after menopause and tended to decrease afterwards. The prevalence of other symptoms eg. dry eyes and headache appeared to be unchanged after menopause.