Left Abdominal Mass: Causes and Concerns - Gastroenterology and Hepatology

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Left abdominal mass?


Hello, about three years ago, I noticed a hard lump about 1 cm in size in my lower left abdomen.
It doesn't hurt when pressed, and I haven't experienced any specific symptoms.
However, recently I've felt a bit of discomfort in that area.
I had an ultrasound, and the doctor seemed to think it wasn't anything serious.
At that time, I was too nervous to ask many questions.
I don't have constipation; I have bowel movements once to three times a day, and when I go three times, the stools are smaller.
Could this possibly be related to any intestinal diseases?

A-Hong, 20~29 year old female. Ask Date: 2016/05/02

Dr. Chen Qifeng reply Gastroenterology and Hepatology


It is important to differentiate whether the mass is subcutaneous or intra-abdominal.
If it is an intra-abdominal mass, regardless of its tissue or organ of origin, it is already quite large if it can be palpated.
In contrast, a mass arising from the subcutaneous tissue is more likely to be detectable at just one centimeter.
Of course, a physician's examination is necessary to confirm the diagnosis.

Reply Date: 2016/05/02

More Info


When it comes to the presence of a left abdominal mass, particularly one that has been noted for three years without significant pain or other alarming symptoms, there are several considerations to keep in mind. The fact that you have a hard mass approximately 1 cm in size that does not cause pain upon palpation is a positive sign, as painful masses are often more concerning. However, the recent sensation of discomfort or a feeling of fullness in that area warrants further exploration.

First and foremost, it’s important to understand that abdominal masses can arise from various structures, including the gastrointestinal tract, lymphatic system, and even the musculoskeletal system. Given your description, the mass could potentially be a benign growth, such as a lipoma (a fatty tumor), a cyst, or an enlarged lymph node. However, it is also essential to consider the possibility of gastrointestinal issues, such as diverticulitis or even a localized inflammatory process.

The fact that you have undergone an ultrasound and the physician did not find anything alarming is reassuring. Ultrasound is a useful tool for evaluating soft tissue masses and can help differentiate between solid and cystic lesions. If the ultrasound did not reveal any significant abnormalities, it suggests that the mass is likely benign. However, if you continue to experience discomfort or if the mass changes in size or characteristics, further evaluation may be warranted.

Regarding your bowel habits, having regular bowel movements ranging from once to three times a day is generally considered normal, especially if you are not experiencing constipation or diarrhea. The feeling of fullness or discomfort in the left lower abdomen could be related to gastrointestinal motility issues, such as irritable bowel syndrome (IBS), which can cause sensations of bloating and discomfort without significant structural abnormalities.

If you are concerned about the possibility of underlying gastrointestinal diseases, it may be beneficial to consider additional diagnostic tests. A colonoscopy could be a valuable next step, especially if there are any changes in your bowel habits, unexplained weight loss, or if you notice any blood in your stool. This procedure allows for direct visualization of the colon and can help identify issues such as polyps, inflammation, or other abnormalities.

In summary, while the presence of a 1 cm hard mass in the left lower abdomen that is not painful is generally not alarming, the recent sensation of discomfort should not be ignored. It is advisable to maintain regular follow-ups with your healthcare provider, especially if symptoms persist or worsen. Keeping a symptom diary, noting any changes in bowel habits, diet, or associated symptoms, can also provide valuable information for your healthcare provider in determining the next steps in your evaluation and management. Always feel empowered to ask questions during your medical visits to ensure you fully understand your health status and any recommended investigations.

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