For example, a child of two or three years of age may be brought to the doctor with the complaint that defæcation is painful, and that there has existed for some time a most distressing constipation which has resisted a large number of purgatives of increasing strength. Whenever the child is placed upon the stool, his crying at once begins, and no attempts to soothe or console him have been successful. It is not sufficient for the doctor in such a case to make an examination which convinces him that there is no fissure at the anus and no fistula or thrombosed pile, and to confine himself to saying that he can find nothing the matter. The crying and refusal to go to stool will continue after the visit as before, and the mother will be apt to conclude that her doctor, though she has the greatest confidence in him for the ailments of grown-up persons, is unskilled in, or at least not interested in, the diseases of little children. If, on the other hand, the doctor pursues his inquiries into the management of the child in the home, and if, for example, he finds that the crying and resistance is not confined to going to stool, but also takes place when the child is put to bed, and very often at meal-times as well, then it will be safe for him to conclude that all the symptoms are due to the same cause--a sort of "negativism" which is apt to appear in all children who are directed and urged too much, and whose parents are not careful to hide from them the anxiety and distress which their conduct occasions. If this diagnosis is made, then a full and clear explanation should be given to the mother, or at any rate to such mothers--and fortunately they are in the majority--who are capable of appreciating the point of psychology involved, and of correcting the management of the child so as to overcome the negativism. To attempt treatment by prescribing drugs, or in any other way than by correcting the faulty management, is to court failure. As Charcot has said, in functional disorders it is not so much the prescription which matters as the prescriber.