No this is not what I said. I said, “Tissue injury either heals by restoration of existing cells (whether as they were prior or bigger, depending upon the conditions that exist) or by replacement of cells that die.”
By restoration I mean repair. Cells have this capacity. If this cell is under stress, this may result in hypertrophy.
By replacement I meaning new cells (hyperplasia).
The production of new cells (by stimulation of locally produced factors) probably off load stress on existing cells (injured and repaired or uninjured) so that hypertrophy may not be the ultimate result.
I’m referring to “Textbook of Medical Physiology” by Arthr G. guyton; it says that cells regeneratione is regulated in so way that number and dimension of cells is relatively constant in the body. If a tissue of the body becomes bigger this is caused by:
1) hyperplasia :no proof that this phenomenon happens in the human body;
2) hypertrophy : this is quite a normal way to adapt to a stress (like atrophy, inverse phenomen);
3) cellular proliferation, a consequence of :
a) mechanical separation in some tissue (in example a skin-cut, or liver separation) - but yo’ll have scar tissue, in a certain degree and at least temporarely;
It seems that only hypertrophy can be involved in PE; we don’t cut our penis hoping it will be addictional tissue by new born cells, and don’t hope to provoke e penile cancer. Neither bodybuilders cut their muscles hoping the’ll start to grow trough cells proliferation.