IntroductionGynecological diseases ranked second among new cases of noncommunicable diseases in women of reproductive age in 1990 and 2019 globally. The aim of this study was to estimate the disease burden of gynecological diseases and describe their trends in women of all ages from 1990 to 2019. MethodsUsing data from the Global Burden of Diseases, Injuries and Risk Factors Study (GBD 2019), we examined the incidence, disability–adjusted life years (DALYs) and deaths from gynecological diseases by age in 204 countries and territories worldwide from 1990 to 2019. Analyses were conducted in 2022. ResultsGlobally, the age–standardized incidence rate (ASIR) and age–standardized DALY rate (ASDR) of gynecological diseases decreased by –0.176 % and –0.245 %, respectively from 1990 to 2019. Low socioeconomic development index (SDI) countries had the highest ASIR and ASDR in 2019. The age-specific incidence rate of gynecological diseases in women aged 15–29 years increased from 1990 to 2019, and the 20–24-year age group increased the greatest by 0.21%. Polycystic ovary syndrome and other types of benign disorders contributed to the major increase. ConclusionsAlthough the disease burden of gynecological diseases decreased slightly between 1990 and 2019 globally, it remained highest in low SDI countries. The disease burden in 20–24-year age group exhibited the fastest growth, with polycystic ovary syndrome and other types of benign disorders playing a significant role. Urgent and effective measures should be taken to target different age groups, types of gynecological disease and regions with high disease burdens.