Why Cancer Reoccur After Removal by Surgery

Why Cancer Reoccur After Removal by Surgery


Now we know that Cancer is caused by continuously dividing cells.

Sometimes a cell from the cancerous mass detaches from the actual mass and enter the blood stream and reaches other parts of the body through blood.

This detached cell then entrapped at another site of the body and start to grow there.
This cancerous growth is not at the site where the actual cancerous cell first appeared.

So this second growth is called Metastatic Growth, and this process is called metastasis.
sometimes this metastasis  has occurred before surgery but is not visible or felt by the patient or by the doctor either.

So when the doctor has removed the initially appeared mass, there is a chance of emergence of another doubtful mass long time after previous surgery.

And sometimes a part of cancerous material left unmoved and emerges afterwards.