No they can not. A polyp is a solid mass. It is not filled with gas and therefore will not expand in a low pressure environment.
Hysteroscopy
They are polyps in children
small polyps
what are soft polyps.
There are a variety of reasons that someone might start bleeding during pregnancy, such as implantation of the eggs in the uterus, miscarriage, an ectopic pregnancy, cervical changes, infection, placenta previa, placenta abruption, uterine rupture, vasa previa, or premature labor. There are also possibilities that the bleeding may be due to an injury to the cervix, polyps or even cancer.
Where do polyps live
Spinal polyps
They will eat, will retract their polyps if touched, will expand during the day and shrink during the night, and they will grow.
Cervical polyps are a common condition and are not usually life threatening. Most OBGYNs can remove them easily during a pelvic exam, using by pulling them off or simply cutting them with forceps.
polyps are sessile, therefore they do not move
Polyps are radially symmetrical.
Sponges are not parasitic. Where as polyps.