Atrophic colitis, also known as atrophic colica, is a condition characterized by chronic inflammation and degeneration of the colon lining. While "atrophic colica" is not a widely recognized term, it is commonly used as a synonym for atrophic colitis. Atrophic colitis can cause symptoms such as abdominal pain, diarrhea, and bloody stools. Other synonyms for this condition include collagenous colitis and microscopic colitis. The underlying causes of atrophic colitis are still not fully understood, but factors like autoimmune reactions, genetics, and certain medications or infections may contribute. Treatment typically involves symptom management through medication, diet modifications, and lifestyle changes. In severe cases, surgical intervention might be necessary.