What are the dangers caused by cancer pain? Cancer pain, if not effectively controlled, will cause patients to suffer from pain all day long, resulting in forced postures, serious sleep disorders, decreased appetite and decreased immunity, thus accelerating the development of tumors. Chronic severe pain, if not relieved, will develop into intractable cancer pain and become a disease. Due to the unbearable pain, it can lead to severe anxiety or major depression, which is also one of the important reasons leading to patients’ suicide. Common Misconceptions in Cancer Pain Treatment Myth 1: Taking opioids is only applicable to patients in advanced stages. In fact, whether to apply opioids (e.g. morphine) is only related to the patient’s pain type and pain degree, not related to the early or late tumor stage. As long as the patient with intractable pain, regardless of the early or late staging, as long as there are indications, opioids can be used to relieve pain in a timely manner. Myth 2: Use painkillers only when the pain is severe In fact, timely and on-time use of painkillers is safer and more effective, and requires a lower dose. The use of drugs only when the pain is severe, not only the relief effect is poor, and due to the pain, easy to anxiety, depression, sleep and food, affecting the quality of life of the patient, resulting in wasting, failure, but also make the patient can not tolerate the original disease treatment (such as surgery, radiotherapy). Myth 3: It is safer to use non-opioid drugs For patients with chronic cancer pain who need to use painkillers for a long time, it is safer and more effective to use opioid drugs (e.g. morphine). The side effects of non-opioids are easy to ignore and their effects have a “capping effect”. For patients with moderate to severe cancer pain, opioid painkillers have an irreplaceable position. Myth 4: Dulcolax is the safest and most effective painkiller In fact, Dulcolax is not recommended by the WHO for the treatment of cancer pain due to its high toxicity and poor painkilling effect. Myth 5: Morphine is easy to be addicted Experimental research and clinical practice have confirmed that cancer pain patients who take morphine or use transdermal patches rarely become addicted. Once opioids are used, they can be safely discontinued at any time if the cause of cancer pain is controlled or the pain disappears. Long-term use of opioid analgesics by patients with cancer pain may require a gradual increase in dosage, which can be successfully withdrawn when the pain subsides, a phenomenon of “physical dependence” that should be distinguished from so-called “addiction”. However, the use of opioids for non-medical purposes is a form of drug abuse, such as repeated intravenous injection of large doses of opioids, which may lead to “addiction”. Myth 6: Cancer pain can only be treated with medication In fact, as long as the medication is used in strict accordance with the principle of the three-step ladder, 80% of the patients with cancer pain can get pain relief. In fact, as long as the three-step principle is strictly followed, 80% of cancer pain patients can get relief from pain. In addition to medication, for patients who have poor effect of medication, techniques such as spinal nerve or sympathetic nerve destruction, continuous drug infusion in the spinal canal, neural radiofrequency and minimally invasive analgesia can be used, which can help patients effectively control their cancer pain.