Side effects and hazards of fire needling include the possibility of burns, bleeding, and infection. Fire needling refers to selecting the corresponding acupoints to be pricked after the metal needles are burned red. Usually, fire needling can be used to treat scrofula (mainly refers to cervical lymph node nodule tuberculosis), carbuncle (is a kind of poisonous sores, which occurs on the body surface, limbs, and internal organs of the acute suppurative disease), paralysis (the poor operation of qi and blood leads to pain and numbness of limbs and so on), persistent jock itch, laryngeal tumor, and milky moth (related to tonsillitis in western medicine) and other medical conditions. If the temperature of the fire needle burning is too high it may lead to burns at the site of needling, and the patient may have localized blisters, pain and other manifestations, and some patients may also have hyperpigmentation after the wound has healed. In addition, fire needle needling to the arteries, large veins and other parts of the body may lead to bleeding, and in severe cases, hemorrhage may also occur. In addition, if the needles are not thoroughly sterilized before fire-needling treatment, or if the needling site is not sterilized, as well as if the area is not cleaned after fire-needling treatment, the needling site may become infected, and the area will be red, swollen, painful and other manifestations. It is recommended that patients need to go to a regular hospital to find a professional Chinese medicine practitioner for fire-needling treatment, in addition, avoid fire-needling treatment on blood vessels, internal organs and joints.