From the perspective of Western medicine, the diet for bladder cancer patients involves drinking plenty of water, avoiding spicy foods, and abstaining from alcohol and tobacco. Patients should also ensure they get enough vitamins by consuming fresh fruits and vegetables. Additionally, it is important to consume adequate nutrition including eggs, meat, and fish, and patients should not hold in urine. However, from the perspective of Chinese medicine, bladder cancer patients should avoid foods that induce excessive internal heat, such as lamb and seafood, and should also avoid cold or chilled foods.