Selena Gomez Responded After A Recent Red Carpet Appearance Sadly Sparked Comments On Her Weight

SIBO stands for small intestinal bacterial overgrowth, which, according to the Mayo Clinic, happens when “the passage of food and waste products in the digestive tract” slows, “creating a breeding ground for bacteria.” Symptoms include bloating, stomach pain, and malnutrition. 

Selena also has lupus and underwent a kidney transplant in 2017.