Appendicitis (Wiki).

Appendicitis is a condition characterized by inflammation of the appendix. 

It is a medical emergency.

All cases require removal of the inflamed appendix, either by laparotomy or laparoscopy. 

If untreated, mortality is high, mainly because of peritonitis and shock.

Laparotomy: A surgical procedure involving an incision through the abdominal wall to gain access into the abdominal cavity.

Laparoscopy: A modern surgical technique in which operations in the abdomen are performed through smallincisions (usually 0.5-1.5cm).

Causes

Acute appendicitis seems to be the end result of a primary obstruction of the appendix lumen. 

Once this obstruction occurs the appendix subsequently becomes filled with mucus and swells, increasing pressures within the lumen and the walls of the appendix, resulting in thrombosis and occlusion of the small vessels, and stasis of lymphatic flow. 

Rarely, spontaneous recovery can occur at this point. 

As the former progresses, the appendix becomes ischemic and thennecrotic. 

As bacteria begin to leak out through the dying walls, pus forms within and around the appendix (suppuration). 

The end result of this cascade is appendiceal rupture (a 'burst appendix') causing peritonitis, which may lead to septicemia and eventually death.

Symptoms

The typical history includes pain starting centrally (periumbilical) before localizing to the right iliac fossa (the lower right side of the abdomen); this is due to the poor localizing (spatial) property of visceral nerves from the mid-gut, followed by the involvement of somatic nerves (parietal peritoneum) as the inflammation progresses. 

The pain is usually associated with loss of appetite and fever, although the latter isn't a necessary symptom. 

Nausea or vomiting may occur, and also the feeling of drowsiness and the feeling of general bad health. 

With the typical type, diagnosis is easier to make, surgery occurs earlier and findings are often less severe.

Atypical symptoms may include pain beginning and staying in the right iliac fossa, diarrhea and a more prolonged, smoldering course. 

If an inflamed appendix lies in contact with the bladder, there is frequency of urination. 

With post-ileal appendix, marked retching may occur.

Tenesmus or "downward urge" (the feeling that a bowel movement will relieve discomfort) is also experienced in some cases.

Insya'Allah, everything will be alright.