What causes lower left abdominal distension but not a hernia?

Several conditions other than a hernia can cause lower left abdominal distension. Here are some possible causes:

1. Diverticular disease: This is a condition characterized by the formation of small pouches (diverticula) along the colon. As these diverticula become inflamed or infected, it can lead to lower left abdominal distension.

2. Irritable bowel syndrome (IBS): IBS is a common condition that affects the large intestine and causes symptoms such as bloating, abdominal pain, and diarrhea or constipation. Lower left abdominal distension can be one of the manifestations of IBS.

3. Ovarian cysts: These are fluid-filled sacs that develop on or near the ovaries. While they are often asymptomatic, large ovarian cysts can cause abdominal distension and discomfort.

4. Urinary tract issues: Conditions such as a urinary tract infection (UTI) or kidney stones can cause bloating and lower left abdominal distension due to the pressure exerted by the enlarged or obstructed organs.

5. Gastrointestinal conditions: Various other gastrointestinal conditions like inflammatory bowel disease (IBD), constipation, or mesenteric lymphadenitis (inflammation of the lymph nodes in the abdomen) can lead to lower left abdominal distension.

6. Pelvic inflammatory disease (PID): In women, PID is an infection of the reproductive organs that can cause lower abdominal distension and pain.

7. Tumors or growths: In rare cases, lower left abdominal distension can be a sign of a tumor or growth in the abdomen.

It's crucial to consult a healthcare provider for an accurate diagnosis if you're experiencing lower left abdominal distension. They can determine the underlying cause and recommend appropriate treatment or management strategies.