Eating sugar cane usually does not cause mouth ulcers if it does not lacerate the oral mucosa, but if it accidentally lacerates the oral mucosa when consumed, it may induce mouth ulcers. If a mouth ulcer occurs due to eating sugar cane, it is recommended to seek medical treatment as soon as possible. Sugar cane is a stem fruit and is rich in vitamin B, vitamin C, sucrose, fructose, calcium, phosphorus, iron and other trace elements, which have more benefits to the body. However, sugar cane has more crude fiber, and the human tongue and oral mucosa are fragile, so it is easy to pierce the soft tissues of the mouth when eating it. It is recommended that sugar cane be peeled and cut into chunks or juiced to avoid stabbing the mucous membrane. After the occurrence of mouth ulcers, you can apply watermelon cream, epithelial growth factor gel to the affected area under the guidance of a doctor to relieve, you can also use rehabilitation new liquid gargle, avoid eating spicy and stimulating food to stimulate the wound to help the wound recovery.