Baby gum ulcers can be seen in diseases such as coccidioidomycosis and primary herpetic stomatitis, which are mostly caused by bacterial or viral infections, so baby gum ulcers may also cause fever. Diseases such as coccidioidomycosis and primary herpetic stomatitis, mostly due to bacterial or viral infections, can cause pyogenic fever, which is the most common clinical mechanism of fever. Bacteria or viruses can induce host cells (including macrophages, reticuloendothelial cells, lymphocytes, epithelial cells and fibroblasts and other cells) can cause fever mediators, such as interleukin 1, interleukin 6 and tumor necrosis factor, etc., and may be by the role of prostaglandin E, elevate the hypothalamus thermoregulatory center of the regulatory point, so that the body temperature rises to the level of fever. So baby gum ulcer is possible to cause fever. If the baby has symptoms of gum ulcers, it is recommended to consult a doctor in time for standardized treatment.