The answer to the question “Is acupuncture dangerous?” cannot be generalized. Normal acupuncture is generally not dangerous and is beneficial to the body. However, if the operation technique is not appropriate or dizzy needles, then there is a danger, may cause bleeding, chest tightness, sweating and other abnormalities. Acupuncture is a common Chinese medicine clinical therapeutic operation, usually, normal acupuncture is not dangerous, but on the contrary, beneficial to health, can play the role of dredging the meridians and channels, harmonization of qi and blood, and support the positive and dispel the evil (to support the positive and dispel the evil qi in the body) and harmonization of yin and yang and so on. However, there are certain dangers if, in the process of acupuncture, there is improper needling technique or lack of comprehensive understanding of the anatomical structure of the needling site, which leads to fainting, stagnation, bending of needles, broken needles, hematoma, stabbing of internal organs leading to pneumothorax, peripheral nerve injury, and so on. This will cause bleeding, pain and other discomforts. In addition, when patients experience needle fainting, they are prone to chest tightness, sweating, nausea, dizziness, pallor, cold limbs and other symptoms. However, it is generally safe to perform acupuncture in regular medical institutions, so there is no need to worry too much, and patients can prevent the occurrence of needle fainting by properly regulating nervous tension. In summary, when the body is not feeling well, you need to go to the hospital in time, under the operation of the doctor for acupuncture, so as not to cause adverse effects.