How many stages of cancer can be treated without chemotherapy

Early cancer usually does not need chemotherapy.

Early cancer means that the tumor size is small, distant metastasis has not yet occurred, and the invasion of surrounding tissues is relatively limited. For example, in situ cancer stage, cancer cells are only limited to the primary site. At this time, local treatments such as surgery can often achieve better results, completely eliminating cancer cells, and do not need chemotherapy to further clean.

Moreover, for many early cancers, surgical resection is the main treatment. Surgery can accurately remove tumor tissue, and can ensure sufficient safety margins, thus greatly reducing the risk of cancer recurrence, without the need for chemotherapy to enhance the efficacy.

In addition, chemotherapy can kill cancer cells, but at the same time can cause damage to normal cells, bringing a series of side effects, such as nausea, vomiting, hair loss, immunity decline, etc.