What symptom is cancer pain?

summary

The occurrence of any cancer has a certain time process, from early to late, from quantitative change to qualitative change. Cancer also has an aural response. Understanding the symptoms of pre cancer can help us find cancer early and gain more time to treat cancer. What symptom is cancer pain? Let's talk about it

What symptom is cancer pain?

The mechanism of cancer pain remains unclear. It is generally believed that mechanoreceptors and chemoreceptors are activated or sensitized by mechanical or chemical stimulation in bone, soft tissue, lymphatics, blood vessels and viscera through a δ Fibers or C-fibers transmit to the central nervous system and produce pain. A δ Fiber is a myelinated nerve fiber with a diameter of 1-4 μ m. C-fiber is sheath free and its diameter is 0.2-1.0 μ m。

Single pain stimulation caused double sensation. The two kinds of fibers were active at the same time, but the time of impulse reaching the center was different δ 4 s. After stimulation, acute pain with rapid and accurate location but not severe pain was first felt, followed by diffuse dull pain with strong degree; The former is called "first pain" and the latter is called "second pain".

The afferent pathway of visceral sensation in cancer pain examination was basically consistent with that of the body, but most of the fibers accounted for 80%. Visceral pain threshold is higher, and visceral pain threshold is more sensitive to swelling, spasm, ischemic tetanic contraction and chemical stimulation (often causing severe pain, accompanied by changes in respiration and blood pressure, sweating, setae erection, vomiting, muscle tension enhancement, etc.);

matters needing attention

Strengthening the prevention and treatment of cancer is the fundamental way to prevent cancer pain. Cancer pain treatment and cancer treatment are equally important, not only can enhance the effect of cancer treatment, improve the quality of life of patients, prolong the survival period, but also can help cancer patients finish their last journey with dignity in a relatively painless state.