Františkovy Lázně is a spa town in Cheb District of Karlovy Vary Region, in the Czech Republic. Together with neighbouring Karlovy Vary and Mariánské Lázně, it is part of the renowned West Bohemian Spa Triangle. The historic town centre, under monumental protection since 1992, is a candidate for inclusion in the UNESCO World Heritage.
The local natural mineral water has a relatively high content of dissolved carbon dioxide. The effects of the carbonic baths are shown in the better performance of the cardiovascular system, in the mild decrease of blood pressure in the pulse, in the lower occurrence of chronic inflammatory processes in the body, and also in terms of rheumatics, and in the improved blood circulation in tissues and the vegetative stabilisation.
The local mud treatments represent a traditional curative method which has thermal, chemical and mechanical effects. The mud treatment consists of a thick mushy combination of mud and mineral water which is heated up to a temperature which is significantly higher than body temperature. The treatment has a positive effect on mobility of muscles and the pain in treated tissues.
The local spa corporation is the biggest spa corporation in the Czech Republic. It operated 24 mineral springs, 12 of which are still in operation.