Tumor growth refers to the process by which a tumor increases in size and number of cells. The rate of growth can vary greatly depending on the type of tumor, and can range from slow-growing and benign tumors to rapidly growing and aggressive tumors.

Several factors can influence tumor growth, including the presence of blood vessels that provide nutrients to the tumor, genetic mutations that promote cell growth, and the ability of the tumor to evade the body’s immune system.

Certain treatments can inhibit tumor growth or cause tumor regression, such as chemotherapy, radiation therapy, and targeted therapy. Surgery can also be used to remove the tumor, and immunotherapy can help to boost the body’s immune system to fight the tumor.

It’s important to note that not all tumors are cancerous, and not all cancerous tumors are malignant. Some tumors may not grow or spread, and may not require treatment.