Correctly taking Chicken Nei Jin will usually not cause kidney stones to become larger. Chicken Neijin belongs to a kind of Chinese herbal medicine for the sand sac lining of the domestic fowl of the pheasant family Pheasantidae, which has the efficacy of eliminating food and strengthening the stomach, astringing semen and stopping spermatorrhea (consolidating semen and preventing spermatorrhea), and clearing gonorrhea and resolving stones. It is commonly used to treat dietary stagnation, pediatric chancre (a chronic disease of children, manifested by emaciation, abnormal diet, abdominal distension, thinning and yellowing of hair, etc.), spermatorrhea in renal deficiency, and gonorrhea (increased frequency of urination, astringent and painful dribbling), among other conditions. Correct use of Chicken Nei Jin does not cause kidney stones to become larger. Adverse reactions and contraindications of Chicken Nei Jin are not clear, and it should be taken with caution for those with spleen deficiency and no accumulation. If the patient suffers from kidney stones without timely treatment or usually consume too much food containing calcium and high oxalic acid, it is easy to cause the precipitation of crystalline substances in the urine, which will adhere to the previously suffered from kidney stones, resulting in the gradual enlargement of the stones. When the patient needs to take chickpea, it should be taken under the guidance of the physician. If the patient has kidney stones become bigger, it is recommended to go to the hospital for examination and treatment in time, so as to avoid delaying the condition.