Wechahi's artworks participated in several national & international exhibitions since 1959;
Represented Egypt in several international exhibitions in Egypt, UAE, Europe, U.S.A and Latin America:
The International Biennale of Alexandria, Egypt, 1961, 1963, 1979.
The International Biennale, Ibiza, Spain, 1966.
III, V, VI International Biennale of sport in Fine Arts, Barcelona and Madrid, Spain, 1971, 1975, 1977.
The International Biennale, Venice, Italy, 1980.
Exhibition and Conference of International Sculpture, Oakland, San Francisco, U.S.A,1982.
II International Biennale, Cairo, Egypt, 1986.
IV International Biennale, Havana, Cuba, 1991.
Exhibition of Contemporary Egyptian Art, ''Centro de Estudios Juan de Mariana'' Toledo, Spain, 2005.
· Art Dubai Modern, Dubai, United Arab Emirates, March 2017
National and International Sculpture Exhibitions, Spain, Italy and France:
Salon of Cairo ince 1959 .
IV Bienal International of Paris, France, 1965.
Salon of Autumn, Madrid, Spain 1967.
II, III National Exhibition (Sculpture in Metal) Valencia, Spain, 1970, 1971.
VII, VIII International Exhibition, open air, Museum of Modern Art, Legnano, Milano, Italy, 1971, 1972.
National Exhibition for (Grand Premio), Spanish Sculptors,'' Cerculo de Belles Artes'', selected to exhibit out of the concours, 1977.
Salon of Paris, Modern Sculpture, open air, Champs-Elysées Gardens, Paris, France personal invitation, 1978.
Medals Expositions (Tomas Francisco Prize), Madrid, Spain, 1976.
13th Aswan International Sculpture Symposium 2008 .
Personal invitations to one man show in Egypt, Italy and Spain since 1970:
Gallery Regnoni Cesena, Italy 1972.
Gallery Gardinia Club, Bologna, Italy, 1973.
Gallery Culture Center, Ibro Americano, Madrid, Spain, 1978.
Gallery Genoi Financial Club, Madrid, Spain, 1978.
Gallery Anito Politano-Stickle, Cairo, Egypt, 1982.
A retrospective, Ofok Gallery, Mahmoud Khalil Museum, Cairo, Egypt, May 2014.
Personal invitations in Egypt – 2001 till present:
27th National exhibition for fine arts at the arts palace, Cairo, Egypt, 2001.
Panorama of 20th century Egyptian Art, Bibliotheca Alexandrina 100 years 100 Artists- 100 artworks, Alexandria, Egypt, 2003 .
Egypt salon 1st session at the main hall of prince Taz Palace, Cairo, Egypt, 2007.
Exhibition faculty of fine arts centennial at Arts Palace, Cairo, Egypt, 2008.
Faces collective exhibition at Offok Gallery, Ministry of Culture, Cairo, Egypt, 2009.
Panorama of Egyptian sculpture collective exhibition at Zamalek Art Gallery, Cairo, Egypt, 2009.
The woman in fine arts, main hall at prince Taz Palace, Cairo, Egypt, 2010.
Picasso gallery, collective exhibition, Cairo, Egypt, 2011.
- Intersection, Gallery Misr, Cairo, Egypt, October 2014.
- Selections from Bibliotheca Alexandrina Art collection, Alexandria, April 2017