单项选择题

TEXT E
Patients tend to feel indignant and insulted if the physician tells them he can find no organic cause for the pain. They tend to interpret the term "psychogenic" to mean that they are complaining of nonexistent symptoms. They need to be educated about the fact that many forms of pain have no underlying physical cause but are the result, as mentioned earlier, of tension, stress, or hostile factors in the general environment. Sometimes a pain may be a manifestation of "conversion hysteria".
Obviously, it is folly for an individual to ignore symptoms that could be a warning of a potentially serious illness. Some people are so terrified of getting news from a doctor that they allow their malaise to worsen, sometimes past the point of no return. Total neglect is not the answer to hypochondria. The only answer has to be increased education about the way the human body works; so that more people will be able to steer an intelligent course between promiscuous pill popping and irresponsible disregard of genuine symptoms.
Of all forms of pain, none is more important for the individual to understand than the "threshold" variety. Almost everyone has a telltale ache that is triggered whenever tension or fatigue reaches a certain point. It can take the form of a migraine-type headache or a squeezing pain deep in the abdomen or cramps or a pain in the lower back or even in the joints.
The individual who has learned how to make the correlation between such threshold pains and their cause doesn’t panic when they occur; he or she does something about relieving the stress and tension. Then, if the pain persists despite the absence of apparent cause, the individual wilt telephone the doctor.
Some people suffering from a pain do not go to hospital because______.