At present the value of prevention in the treatment of the toxemias of pregnancy is so clearly recognized that charitable organizations employ nurses to visit women of the poorer classes during pregnancy in order to instruct them about the measures that I have just indicated. Remarkable results have already been obtained. In one clinic where this method has been adopted the frequency of all kinds of toxemia, I am told, has notably diminished, and serious types are not permitted to develop. Similar results should be obtained in private practice when patients place themselves under medical supervision at the beginning of pregnancy. Under these favorable circumstances symptoms of autointoxication probably occur not oftener than once in every hundred pregnancies, but nine out of ten of them, being promptly recognized, yield readily to relatively simple treatment. The early detection of such complications depends largely upon the patient herself. As has been emphasized--and it cannot be said too frequently--she should not fail to submit, at appropriate intervals, a specimen of urine for examination. It is by such an examination generally that the development of a toxemia is first detected. Occasionally, however, significant signs will attract the patient's attention before there is any change in the urine. For that reason, it is important to notify the physician if any of the following symptoms appear: (1) Serious vomiting. (2) Persistent headache. (3) Dizziness. (4) Puffiness about the face. (5) Blurring of vision, or the appearance of black spots before the eyes. (6) Neuralgic pains, especially in the pit of the stomach. It must be clearly understood, however, that any of these symptoms may be present without indicating that a toxemia is developing. Nevertheless, they should be brought to the physician's attention without delay, and, at the same time, a specimen of urine should be given him for examination. Although the kidneys are not responsible for all the toxemias of pregnancy, an analysis of the urine affords the most definite means of determining whether or not such a condition is present. When thus detected, prompt treatment will guarantee to the patient almost certain relief. On the other hand if, as usually happens, the analysis shows conclusively that there is nothing serious the matter, this reassurance fully justifies the trouble taken to secure it. CHAPTER VIII MISCARRIAGE Frequency--Causes and Prevention--Habitual Miscarriage--Warning Symptoms--After-effects--Criminal Abortion--Therapeutic Abortion-- Premature Delivery.