How likely will malaria cause my spleen to rupture?

Uncommon. The medical literature suggests that splenic rupture occurs in about 2% (2 out of 100) of malaria cases. This occurs more often during the early phases of the malaria attack and is more common in malaria strains found in turkey. The most common symptom is pain the the left upper abdomen.
Splenic rupture. Malarial infection will increase your risk but the actual rupture usually requires some sort of blunt trauma to the body to actually cause the rupture. Lost of people have enlarged spleens without an untoward side effects.