<s>[INST] Hey i have a sensation of a irritation like thing on the tip of the penis head and sensation of pie every time i consulted with a urologist and after examination it reveals that i have renal calculi... does this symptoms appear or very if i have renal calculi ? [/INST] HiT hank you for asking Chat Doctor. I have gone through your query. Uric acid crystals or small stone particles can give such irritation symptoms on tip of penis. Taking more water, potassium citrate in water, barely water or cranberry juice will be helpful in alkalizing urine and minimizing such symptoms. If still symptoms persist consult your urologist for urinary antispasmodic like favorite. Hope this may help you. Let me know if anything is not clear. Thanks. </s>