Since it is one of the cancer, the uterine cancer (neck cancer and body cancer) follows onset mechanism like the other cancer.
You consist of a cell more than 60 trillion in the human body, and a gene (DNA) forming the human body to the individual cell of these is had built-in, and the cell repeats alternation of generations by genetic instructions while performing established work.
The result happens, and the situation that a lymphocyte cannot remove a cancer cell (there is always cancer cell in itself with the healthy person) by that stress becomes at great risk of catching a disease for cancer at all.
You are normal, and, as for the biggest cause to be in a condition that a lymphocyte becoming the cause to catch a disease cannot remove a cancer cell, the balance of a sympathetic nerve (the nervous system which you react by stimulation from the outside, and becomes the active cause) and the parasympathetic (the nervous system working reverse to the sympathetic nerve) depends on immunity falling by disappearing under that influence at all.
When the power of the lymphocyte disappears, continue multiplying without an end, and you erode it, and you get on blood and a lymphatic style before long, and the cancer cell will spread to the other organizations.
As for the uterine cancer (neck cancer and body cancer), in the case of the neck cancer, in the case of the body cancer, female sex hormone (estrogen) almost becomes clear with trigger human (Homo sapiens) / a papilloma virus, but the correct mechanism does not become clear.
It is said that you develop the cancer by genetic variational accumulation in the recent study, but it is said that a cell wears a "cancer" unique characteristic first by protein being damaged.