Table 2. Key Findings in IBD subsets .

Contributing triggers and disease features	Types of disease
	Conventional IBD	Monogenic IBD
Environmental factors	stronger	weaker
Genetic background	Complex	Mendelian
Frequency of subtypes	UC	CD
The course of disease	Milder	Severe
Response to therapy	Good	Poor
Atypical finding in endoscopy and histology	Lesser	More
Age of onset	>7 Yrs	<6Yrs
Perianal disease	Lesser	More
Consanguinity	Important	Essential
Sexuality	A subtle difference	A male predominance