Tenesmus

Nature 
Symptom of a disease affecting the lower part of the large intestine, such as dysentry, piles or tumour, consisting of a constant sense of weight in the lower bowel and need to defaecate, straining to defaecate with little success except the passage of some mucus and perhaps blood.
Aggravates 
Aggravated by 
Type 
(E) Emanations of other problems