Total 48 clinical symptoms reported for Lynch syndrome 
Abdominal pain An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) and perceived to originate in the abdomen.
 
Synonyms:Abdominal pain; Pain in stomach; Stomach pain
Very frequent
Colon cancer
 
Synonyms:Colon cancer
Very frequent
Constipation Infrequent or difficult evacuation of feces.
 
Synonyms:Constipation; Costiveness; Dyschezia
Very frequent
Fatigue A subjective feeling of tiredness characterized by a lack of energy and motivation.
 
Synonyms:Fatigue; Tired; Tiredness
Very frequent
Gastrointestinal hemorrhage Hemorrhage affecting the gastrointestinal tract.
 
Synonyms:Gastrointestinal bleeding; GI hemorrhage
Very frequent
Glioblastoma multiforme A tumor arising from glia in the central nervous system with macroscopic regions of necrosis and hemorrhage. Microscopically, glioblastoma multiforme is characterized by regions of pseudopalisading necrosis, pleomorphic nuclei and cells, and microvascular proliferation.
 
Synonyms:Glioblastoma
Very frequent
Malabsorption Impaired ability to absorb one or more nutrients from the intestine.
 
Synonyms:Intestinal malabsorption; Malabsorption
Very frequent
Weight loss Reduction of total body weight.
 
Synonyms:Loss of weight
Very frequent