Are the 6 early signs of osteosarcoma real?

“6 early signs of osteosarcoma” is not true.
Early performance of osteosarcoma is more, not only six typical symptoms and performance, each patient’s onset site, condition and physical condition are different, so the specific symptoms and performance are also different, need to carry out targeted analysis, and even some patients will not appear any abnormal performance in the early stage.
It can only be said that clinically most of the patients with osteosarcoma will have pain, activity limitation, fever, lumps, etc. Some of them may have prolonged low-grade fever phenomenon, while some of them may have localized tissue pain, and some of them may have more than one manifestation at the same time, which need to be determined by CT, pathological tissue biopsy, MRI and other examinations.