What is the solntion of kidney swellling?

Depends on the cause: Kidney "swelling" is another term for hydronephrosis. Tis condition can only be diagnosed by an x-ray (typically a ct, mri, or ultrasound). If the swelling represents true obstruction and there is kidney function loss because of that blockage - surgery is indicated to restore good drainage and preserve function. Tis can often be accomplished by minimally invasive surgery.