The effect of crude aflatoxins on the common carp (Cyprinus carpio L.) was investigated. The results indicated that common carp exposed to aflatoxin doses intraperitoneally or orally showed non-specific clinical signs. The most commen gross post mortem findings were detected in liver, and spleen of exposed fish. Different haematological changes were also recorded in common carp in correlation to the aflatoxin doses. Aflatoxins residues, particularly AFBI, and AFG1, could be detected in flesh of exposed fish whch could be regarded as human hazards.