Patients with kidney stones can eat pineapple, as well as seasonal vegetables and fruits, as these have no impact on kidney stones. However, patients should avoid spicy and stimulating foods, and refrain from drinking alcohol. Treatment plans for kidney stones should be based on their size. It is advisable to first visit a hospital for urinary system ultrasonography and CT scans to assess the size of the stones. Smaller kidney stones may be treated with extracorporeal shock wave lithotripsy, while larger stones may require surgical intervention.