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Category Archives: Poly(methyl methacrylate) for penile girth enhancement

PMMA (polymethyl-methacrylate) nodule

PMMA Injections for Penile Enlargement
Patient had a massive amount of PMMA  ( polymethyl-methacrylate)  for Penille Enlargement and presents with this annoying and disfiguring nodule at base which begs the question “what’s that?”, the last comment you want to hear during intimacy.   The doctor had injected twice.  Included in the mass is an “M and M” sized lump.  I am not a fan of any fluid especially PMMA injected into the penis as it tends to run into tissue planes of least resistance.  Two most notable run-off areas are into the foreskin, or at the base of the penis where is runs into the scrotum. Often performed by doctors who are not board certified urologists, so “caveat emptor” (buyer beware).  PMMA is also used to make windshields, Duco Cement, and as an adhesive for hip joint prostheses.

What Is PMMA And How Does It Work?

PMMA (polymethyl-methacrylate) fillers consist of about 20% tiny PMMA microspheres (microscopic synthetic polymer beads) suspended in 80% of purified bovine (cow) collagen gel. Injections are usually offered is 1cc syringes in order to maintain a well-controlled dosing and prevent over injections with several serious side effects. Due to the limited amount to be injected at once, multiple injections are usually required to achieve a volume effect.

The principle of PMMA injections- When injected inside the wrinkles and underneath the skin, the PMMA microspheres (micron sized plastic beads) are delivered into the tissue alongside with the collagen gel. After a few months, the collagen gel is broken down and absorbed and body’s newly formed collagen replaces its place by surrounding and encapsulating the PMMA microspheres.

While mostly claimed to be permanent, the world of plastic surgery only refers to PMMA fillers as being semi-permanent and only effective to use for the treatment of medium-to-deep wrinkles, folds and furrows, particularly nasolabial folds. It can also be used to fill out pitted scars and to augment thin lips.

Besides the traditional PMMA injections using collagen gel as carrier, a new generation of PMMA is told to be developed south of US borders which is reported to use a water-based carrier- this product has been developed in Brazil and mostly available in South American countries.

PMMA injections were developed based on the same principle as free fat transfer (FFT) in order to fill tissue gaps and defects with longer lasting results. As with fat transfer which needs a solid surrounding supportive tissue in order to revascularize and fill out a gap, PMMA injections require a solid collagen and soft tissue surrounding structure in order to a) stay put where injected in [gel injection in a mold vs in a lose plastic bag, here: your penile shaft and the overlying skin] and b) in order for the injected collagen/ water-based solution to be absorbed and replaced by the body’s natural collagen.




PMMA ( PMMA Injections for Penile Enlargement) polymethyl-methacrylate)  huge lump at base of penis

PMMA lump removed measuring almosrt 2 3/8″  by 1 1/2″











large PMMA nodule

Dr. Reed, I have a large mass on my penis after PMMA injection or Poly(methyl methacrylate) is a product that can be used to make synthetic glass, fiber optics, Duco Cement, surgical glue for hip joint implants and now with tissue expansion What Surgeons Say About PMMA Injections? A large number of plastic surgeons utilize…Continue Reading