Can endometriosis cause weight gain?

Endometriosis is not proven to directly cause fat gain, but it can contribute to body changes that look and feel like weight gain. It is an inflammatory condition, and inflammation can contribute to fluid shifts, bowel slowing, constipation, and abdominal distension. Cyclical pelvic and abdominal swelling, often called endo belly, can change your waistline from day to day even when your diet and body fat haven’t changed.

Over time, pain, fatigue, sleep disruption, stress, and reduced activity can affect appetite, metabolism, and body composition, making weight management harder. Some research suggests a possible association between endometriosis and metabolic risk patterns, including central waist measurements and lipid markers. These associations do not establish whether endometriosis causes metabolic changes or metabolic changes contribute to endometriosis.

If weight or waistline changes occur alongside pelvic pain, heavy bleeding, or bowel or bladder symptoms, our team can help distinguish inflammation and digestive distension from longer-term metabolic or hormonal contributors. If you’d like, contact our team to schedule a consultation and discuss further evaluation and individualized treatment aligned with your symptoms and goals, including excision surgery when appropriate and coordinated whole-person care.