1966 1st International Congress in Zurich, Switzerland
1968 2nd International Congress in Miami, Florida, USA
1969 Postgraduate Course of Lymphology in Davos, Switzerland
1970 3rd International Congress in Brussels, Belgium
1973 4th International Congress in Tucson, Arizona, USA
1975 5th International Congress in Buenos Aires, Argentina, and Rio de Janeiro, Brazil
1977 6th International Congress in Prague, Czechoslovakia
1979 7th International Congress in Florence, Italy
1981 8th International Congress in Montreal, Canada
1983 9th International Congress in Tel Aviv, Israel
1985 10th International Congress in Adelaide, Australia
1987 11th Congress in Vienna, Austria
1989 12th Congress in Tokyo and Kyoto, Japan
1991 13th International Congress in Paris, France
1993 14th International Congress in Washington, DC, USA
1995 15th International Congress in Sao Paulo, Brazil
1997 16th International Congress in Madrid, Spain
1999 17th International Congress in Madras, India
2001 18th International Congress in Genoa, Italy
2003 19th International Congress in Freiburg, Germany
2005 20th International Congress in Salvador, Brazil
2007 21st International Congress in Shanghai, China
2009 22nd International Congress in Sydney, Australia
2011 23rd International Congress in Malmo, Sweden
2013 24th International Congress in Rome, Italy
2015 25th World Congress in San Francisco, USA
2017 26th World Congress in Barcelona, Spain
2019 27th World Congress in Buenos Aires/ Iguazu, Argentina
2021 28th World Congress in Athens, Greece
2023 29th World Congress in Genoa, Italy