Do it yourself? More like poo it yourself.

A growing number of people are turning to YouTube to learn how to give themselves fecal transplants, according to a new study documenting an alarming DIY movement.

Fecal transplants involve putting stool from a healthy donor into a recipient’s intestinal tract in order to restore good bacteria to the gut. The experimental transplants are not yet officially approved by the Food and Drug Administration, but doctors are beginning to test it as a treatment for recurring Clostridium difficile, a life-threatening, diarrhea-producing, antibiotic-resistant infection.

And while the costly procedure also shows some early promise for a wide variety of medical problems, it’s no silver bullet. If a donor carries diseases or bad bacteria, it could — and has been — deadly for those on the receiving end.

But that’s not stopping an enterprising bunch of patients from revving up their blenders and creating their very own “slurry” of feces, according to a study published in the American Journal of Gastroenterology.

A whopping 87 percent of those surveyed in the study said they’ve been facilitating fecal transplants themselves, using online tutorials, sometimes on YouTube, to create their own concoction using supposedly healthy donors’ feces. The majority were using the transplants to treat issues like inflammatory bowel disease and irritable bowel syndrome. Luckily — and surprisingly — most of the patients (82 percent) saw improvements with the procedure.

A grossly thorough Insider piece delving into the study unearthed a thriving online community of people who are bypassing the expense of doctor-supervised transplants and using the procedure to treat everything from Lyme disease to bipolar disease. Some are even wondering if they should try it out on their kids. At-home practices include getting donors to send them their poop, and using a blender and strainer — you do the math — to concoct a sample that can be syringed into their rectums.

The piece highlights some of the leaders of the at-home movement, such as YouTuber Michel Hurst, whose 2013 viral video has more than 125,000 views — and lays out the exact procedure, even using a chocolate-covered banana to demonstrate. Others have resorted to the less-monitored platforms of private Facebook groups and Reddit to share their tips and questions.

“These people are like, ‘Why am I going to wait five years for a drug to become available?’ ” the study’s co-author, Colleen Kelly, tells Insider.

Kelly, a doctor and researcher at Brown Medicine Gastroenterology and Liver Research, says that many of the people she studied believed the at-home methods would be cheaper, or that their doctor wouldn’t provide it for them.

“It seemed [my] last hope to live,” one patient told Kelly.

She attributes the high success rate to a feeling of control around otherwise mystifying diseases.

“There’s this strong placebo effect: ‘I did something that’s supposed to make me feel better and now I’m more in control,’ ” Kelly says. “It’s tough to know what’s going on.”

But, it’s unlikely these DIYers are screening every sample they receive — in fact, a small percentage of the patients Kelly studied didn’t even know who their donor was. This could be problematic if a sample has viruses, bacteria or fungi that could be serving up a deadly mixture for a recipient, as it did last year when a patient with leukemia got E. coli from a tainted transplant and died.

Kelly encourages those with conditions like IBS to stick to the traditional route until better alternatives get the green light from the medical establishment.

“I make sure they’re not being overly dismissive of conventional medicine,” she says.