Rhabdomyosarcoma is a rare malignant tumor that is most common among children’s soft tissue sarcomas and develops from abnormally growing early muscle cells.Embryonal rhabdomyosarcoma predominates in children with rhabdomyosarcoma under the age of 5 years. Embryonal rhabdomyosarcoma is the type of rhabdomyosarcoma with the best prognosis, and common early symptoms tend to be painless lumps. The exact early symptoms vary depending on the location of the tumor. Tumors that grow in the nasal cavity may cause nasal congestion, similar to the symptoms of a sinus infection, and may lead to nosebleeds. Tumors that grow in the ear may cause ear pain, bleeding or fluid in the ear canal, and a lump may appear in the ear canal. Tumors that grow behind the eyes may cause the eye to swell or protrude, and the child may develop a squint or cross-eye. Tumors that grow in the bladder, urethra, vagina, and testicles may cause difficulty urinating or blood in the urine, vaginal bleeding, and lumps may be found in the vagina or around the testicles. Rhabdomyosarcoma can occur in various parts of the body. The clinical manifestation is a painless mass at the primary site, which may invade neighboring tissues and even develop distant metastases. The World Health Organization classifies rhabdomyosarcoma into embryonal rhabdomyosarcoma, vesicular rhabdomyosarcoma, and pleomorphic or mesenchymal rhabdomyosarcoma according to the histological typing, among which embryonal rhabdomyosarcoma accounts for 57% of all rhabdomyosarcoma cases, including the grape cluster cell type and the spindle cell type, and it often occurs in the head and neck region, the bladder, the vagina, the prostate gland, and testes, and other areas.