The difference with Spain as a whole is particularly striking. In 2024, Aragon recorded a rate of 9.47 gonorrhea cases per 100,000 inhabitants, compared with 76.63 in Spain; 4.44 syphilis cases, compared with 24.54; and 4.97 chlamydia cases, compared with 86.26. For all three infections, Aragon ranked among the regions with the lowest reported incidence.
ARAGON SAW A DECLINE IN 2024 AS STIS ROSE IN SPAIN
The comparison with 2023 further highlights this contrast. Gonorrhea cases in Aragon fell from 231 in 2023 to 128 in 2024, while the rate dropped from 17.22 to 9.47 cases per 100,000 inhabitants. The opposite occurred in Spain: cases rose from 34,751 to 37,257 and the rate increased from 72.27 to 76.63.
The same trend occurred with syphilis. Aragon went from 82 cases in 2023 to 60 in 2024, with the rate falling from 6.11 to 4.44. Nationwide, however, diagnoses increased from 11,181 to 11,930 and incidence rose from 23.25 to 24.54 cases per 100,000 inhabitants. Aragon therefore ranked among the regions with the lowest syphilis rates, above only the lowest figures on the regional map.
Chlamydia also declined in Aragon, from 75 cases in 2023 to 67 in 2024. Its rate fell slightly from 5.59 to 4.97 per 100,000 inhabitants, while Spain’s rose from 79.14 to 86.26. The contrast is notable: Catalonia reached a rate of 203.44, the Basque Country 129.33, Navarre 125.50 and Madrid 100.03, while Aragon was among the territories with the lowest figures.
THE PICTURE CHANGES FOR SYPHILIS AND GONORRHEA
That downward trend, however, is not reflected in the 2025 data currently available for syphilis and gonorrhea. Aragon recorded 138 syphilis cases during the year, compared with 60 in 2024. This represents 78 more cases and more than double the previous year’s figure. A total of 176 gonorrhea cases were recorded, compared with 128 in 2024.
The increase is particularly significant because it follows a 2024 in which Aragon had remained well below national rates. In just one year, syphilis notifications therefore rose from 60 to 138 and gonorrhea notifications from 128 to 176, although a proper comparison between Aragon and the other regions will have to wait until the consolidated regional rates for 2025 are available.
LYMPHOGRANULOMA VENEREUM REMAINS AT VERY LOW LEVELS
The fourth infection included in the report, lymphogranuloma venereum, remains far less prevalent in Aragon. Four cases were reported in 2023 and three in 2024, with a rate of just 0.22 cases per 100,000 inhabitants. The rate among all territories monitoring the disease reached 4.59, with particularly high figures in Catalonia, Madrid, the Basque Country and the Canary Islands.
