A few cases are presented to show the importance of different types of symptoms. In one case, illustrating characteristic symptoms, a patient had severe pain in the left kidney region, with dribbling urine, vomiting, tendency to take cold, pain in legs in winter and frequent ineffectual urge for stool. Nux vomica was prescribed on the basis of the last symptom. The pain disappeared after one hour and did not recur, even though a X-ray had revealed a renal calculus before homeopathic treatment.