Most common cause of splenic rupture is -
Most common cause of splenic rupture is Trauma.
In the absence of trauma Spontaneous rupture of spleen occurs due to some minor physical insult to a spleen that has been rendered fragile by an underlying condition. The most common predisposing conditions are IMN, malaria, typhoid fever and lymphoid neoplasms.
Malaria
ITP
Thalassemia
Cirrhosis