What some common Lower Right Abdominal Pain signify

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Lower right abdominal pain may be due to some of the same causes discussed under upper right abdominal pain. With the lower abdominal regions, the continuation with the pelvic cavity means that pathologies of the pelvic organs or structures may also be a cause of pain. Some major risk factors that can causes of lower right abdominal pain are;

Appendix

The appendix is a small out-pouching from the cecum of the large intestine. It is believed to be a reservoir for the normal intestinal flora (good bowel bacteria). It can become inflamed, obstructed and or infected. This may be related to the surrounding parts of the intestine or other abdominal structures or occur independently. Some of the conditions of lower right sided abdominal pain include:
Appendicitis (inflammation of appendix)

Small Intestine

The small intestine comprises the duodenum, jejunum and ileum. It is the major site of digestion and absorption. Waste products and undigested material pass into the large intestine. The small intestine is also the longest part of the gastrointestinal tract and prone to various conditions that may be a continuation of pathology in the stomach or large intestine. Conditions affecting the small intestine that may cause right sided abdominal pain include:
Crohn’s disease affecting the last part of the small intestine, called terminal ileum.

Colon

The colon is the main part of the large intestine and has been discussed above. The most prominent part lying on the lower right side includes the cecum and ascending colon.
Volvulus twisting of the cecum (starting part of large intestine), rare.
Female Reproductive Organs
Gynecological causes of right sided abdominal pain are an important and common cause. It should always be taken into consideration especially if the pain appears to be associated with ovulation or menstrual cycle or there are any menstrual changes that accompany the onset of the pain. A slight discomfort with ovulation and menstruation and mild, short lived pain during pregnancy is normal.

Others are;
Ovulation (mid-cycle pain, Mittleschmerz)
Twisted or ruptured ovarian cyst
Ectopic pregnancy
Miscarriage
Endometriosis
Polycystic ovarian syndrome – PCOS; usually affecting both right and left ovary.

Male Reproductive Organs
Disorders of the male reproductive are unlikely to cause lower right sided abdominal pain with pain in the pelvis or genitalia. Some conditions to consider include :

Spermatic cord disorders
Testes disorders
Abdominal Blood Vessels
The blood vessels in the abdomen include the large aorta and inferior vena cava, with the various branches and tributaries. These blood vessels are prone to a host of diseases that may be isolated to the cardiovascular system or part of a systemic condition. Some of these conditions include:

Hereditary angioedema
Henoch-Schönlein-purpura
Atherosclerosis of arteries that supply the intestine
Blood
Porphyria
Sickle Cell Disease

Skin

Conditions affecting the skin may be responsible for upper and lower right sided abdominal pain. Skin lesions or deformities may be present, including a rash, swelling and/or redness. Most skin diseases present with itchiness but pain may be seen in the following conditions.
Herpes zoster
Dermatitis (eczema) when the skin is broken or there is an infection.
Abdominal Membrane (Peritoneum)
The peritoneum mainly envelopes the gastrointestinal tract in the abdomen and peritoneal fluid keeps the organs lubricated when making contact with each other. Inflammation, infection and swelling may be associated with peritonitis.

 



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