What fruits are contraindicated for patients with urethral stones?

Patients with urethral calculi need to pay special attention to their diet, especially when selecting fruits. The following are some fruits that patients with urethral stones should avoid or consume cautiously: 1. Fruits high in oxalic acid: such as strawberries, blueberries, kiwifruit, and grapes. High oxalic acid content may increase the risk of stone formation. 2. Fruits containing irritating components: such as pineapples, which may exacerbate symptoms in patients with urethral calculi due to their irritating substances. 3. Fruits with high sugar content: such as lychees and watermelons. Excessive sugar intake may lead to metabolic disturbances in the body and indirectly affect stone formation. 4. Cold-natured fruits: such as apricots and plums. Excessive consumption may have adverse effects on the condition of patients with urethral calculi.