Your stool can save lives.

Half a million Americans contract C. difficile infections each year.  1 in 5 patients find that the infection comes back, even after they take antibiotics. For these patients, daily life gets hijacked by the disease.  30,000 people die from C. diff-related causes every year.

Where antibiotics have failed, a new treatment called fecal microbiota transplantation (FMT) cures patients 80%-90% after the first try. 

Who can donate?

Prospective donors must perform a series of health screens to determine their eligibility to donate stool. Here are the most common exclusion criteria for donating:

  • Can you make daily trips to our Medford or Somerville location for at least 60 days?
  • Will you be 18-50 years old during the donation period? 
  • Is your Body Mass Index (BMI) < 30?

How does donating work? 

It's different than donating blood: our stool donors go through at least two rounds of rigorous screens that involve blood and stool tests. They must drop off donations five days a week for at least 60 days.

As compensation for this commitment, donors receive $40 for every stool they donate. 

The process: 

Join our Stool Donor Registry

When we need new donors, we reach out to members of the Stool Donor Registry and invite them to come in for The Pre-Screen Interview. We can only work with donors who are able to visit one of our labs in either Somerville or Medford, MA.  We are looking to expand within the Boston area. You can help us decide where to set up our new location by joining the registry.  We will not contact you for any other reason, and you may email us to remove yourself from the registry at any time.    

The Pre-Screen Interview

We invite qualified prospective donors to come to an OpenBiome lab in either Somerville or Medford, MA to meet with our medical staff. During this visit, we will run through a medical history questionnaire and interview similar to the one that blood donors answer. 

Blood and Stool Screening

Prospective donors who pass the clinical interview undergo a series of stool and blood screens to determine whether they have any potentially infectious pathogens. 

Donating Stool

Donors who pass the interview, stool test, and blood test are on board! Donors are expected to deposit stool at our lab in either Somerville or Medford 5 days a week over a period of 60 days. We are open for donors Monday-Friday, 7:30am-6pm and Saturday - Sunday, 9am-3pm. 

60-Day Follow-Up

After 60 days of donating, donors must undergo a second round of blood and stool screens. If they pass this round of screens, the stool we collected from them will be released and shipped to treat patients all over the country!


Ready to sign up?  Take this survey!