Why Do I Have Lower Right Abdominal Pain?

This article was written with Consensus. Lower right abdominal pain can be a concerning symptom, prompting many to seek medical attention. While appendicitis is often the first condition that comes to mind, there are numerous other potential causes. Understanding these can help in seeking appropriate medical care.

Common Causes of Lower Right Abdominal Pain

Appendicitis

Appendicitis is the most common cause of lower right abdominal pain that requires surgery. It occurs when the appendix becomes inflamed and filled with pus, causing severe pain. If left untreated, it can lead to a ruptured appendix, which is a medical emergency1 4.

Ureteral Calculus

A ureteral calculus, or kidney stone, can cause acute lower right abdominal pain. This condition occurs when a stone travels down the ureter, causing severe pain and sometimes blood in the urine. Imaging techniques like ultrasound and CT scans are crucial for diagnosis2.

Uncommon Causes of Lower Right Abdominal Pain

Diverticulitis

Diverticulitis, although more commonly associated with left-sided abdominal pain, can sometimes present with pain in the lower right quadrant. This condition involves the inflammation or infection of small pouches (diverticula) that can form in the intestines5.

Accessory Spleen

An accessory spleen is a rare condition where an additional spleen is present in the body. While usually asymptomatic, it can sometimes cause pain if it becomes enlarged or twisted. In rare cases, it can be found in the lower right abdomen, complicating the diagnosis2.

Inflammatory and Infectious Conditions

Various inflammatory and infectious conditions can affect the ileocecal region (where the small intestine meets the large intestine), leading to lower right abdominal pain. These conditions can include Crohn’s disease, ileitis, and infections like Yersinia enterocolitica1.

Malignancies

Although less common, malignancies such as cancers of the bowel or reproductive organs can present with lower right abdominal pain. Imaging studies are essential for identifying these serious conditions1 4.

Diagnostic Approaches

Multidetector Computed Tomography (CT)

CT scans are highly effective in diagnosing the cause of lower right abdominal pain. They can identify a wide range of conditions, from appendicitis to malignancies, and are often the first choice in emergency settings1 4.

Ultrasound and MRI

Ultrasound is particularly useful in pediatric and pregnant patients due to the lack of radiation. MRI can also be used as an alternative imaging modality, providing detailed images without radiation exposure4.

Conclusion

Lower right abdominal pain can be caused by a variety of conditions, ranging from common issues like appendicitis and kidney stones to less common ones like diverticulitis and accessory spleens. Accurate diagnosis often requires imaging studies such as CT scans, ultrasounds, or MRIs. If you experience persistent or severe lower right abdominal pain, it is crucial to seek medical attention for a proper diagnosis and treatment plan.

By understanding the potential causes and diagnostic approaches, you can be better prepared to discuss your symptoms with a healthcare provider and receive the appropriate care.

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