Unveiling the Culprit: Sarcina Infection in the Stomach and Its Link to Unexplained Weight Loss

Sarcina species (spp.) infections in humans are relatively rare; however, reported cases have recently increased. We have presented the case of a 56-year-old female with diabetes who presented with bloating, dysphagia, and substantial weight loss, ultimately diagnosed with reactive gastritis secondary to Sarcina spp. infection. Administration of antibiotics and a proton pump inhibitor led to symptom alleviation and weight gain. This case underscores the significance of considering Sarcina spp. infection in patients experiencing unexplained weight loss and nonspecific gastrointestinal symptoms, highlighting the importance of promptly identifying and managing these infections to prevent potentially life-threatening complications that are becoming more prevalent in literature.