Recently, the Glioma Center of Sanbo Brain Hospital of Capital Medical University admitted a 7-year-old Zhejiang young patient, Yuanyuan, a thin and bony girl who weighs only 13 kg and looks like a starving refugee from her appearance. Yuan Yuan’s mother said that Yuan Yuan had not gained weight since she was three years old and had not grown taller since she was four. In June this year, Yuan Yuan walked and walked with faster and faster steps, unable to control themselves forward until they fell to the ground. At first, the parents just thought the child was too weak, so they increased nutrition for her. Later, Yuan Yuan’s appetite decreased, her eyes bulged out, she walked without strength, and her spirit was very poor, developing to the point that she could not walk by herself. The local hospital found that the child had a huge optic glioma in her brain, which occupied one third of the brain space and was combined with hydrocephalus, making surgery extremely risky. They finally found Prof. Lin Zhixiong, a pediatric neurosurgeon at Sanbo, who admitted Yuan Yuan, who was already in a comatose state, to the hospital, and after careful preparation, performed a tumor removal surgery on Yuan Yuan. Prof. Lin introduced that Yuan Yuan’s tumor grew on the optic nerve and invaded the frontal area, hypothalamus and saddle area, the location is very deep and the surrounding brain tissues are all important functional areas. Prof. Lin reminded that there are various manifestations of brain tumor, such as impairment of vision and hearing, mental decline, dizziness and vomiting, unstable walking, etc. In addition, extremely light weight or heavy weight should also attract parents’ attention.