I haven't heard of, or seen, a stoma guard that can accommodate prolapsed stomas. I would imagine such a device would be rather large/bulky, too.

For me, I would minimize any risks that could potentially cause harm to my stoma. No sports, would be an example.

But I'd also use whatever tricks are available to get my stoma to return to normal, whether that's using the sugar trick or laying on my back.

Hi Alex... I'm wondering if you have a prolapse at this time ?  When I had mine, on 2 occasions, I layed down & over a few hours time watched as my intestine snuck back where it belonged.  It was at the bottom of my pouch when I became aware of it. 

Just how big of a prolapse are you speaking of & have you had a recent surgery to your stoma or intestinal area? 

My stoma sticks out on average a good ... 1 1/2 - 2 inches.  Rose is my stomas name. I had to name her to learn to like her and I admit as rediculous as it seems, the rest of out body parts all have names so why not our stomas right?! Lol! 

I hope things are going well for you.

I used to have huge prolapse, the stoma resembled an old type light bulb, the tip was the diameter of the bulb's thread, and its base at the belly was almost 2" dia (5 cm). It started prolapsing in 4-th year after surgery. Ostomy nurse, very professional, suggested that I should wear an ostomy belt, but not use the belt's opening, which went to my back side. The 6" (15cm) elastic was placed over the pouch, thus preventing the stoma to come out to the pouch. Also I wear another belt, which has a thin, flexible and transparent plastic ring, pressed to the outer part of the wafer - this is for delaying and limiting leak (which eventually happens). All the devices I make myself, buying elastic through Internet.

Cheers, polgyver