### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi doctors. I m 21 years old. i was admitted last Mar 31,2012 due to abdominal cramps, they thought it was appendicitis but it is not bouncing pain and my appendix was not visualized in the ultrasound. so it was ruled out as UTI. My ultrasound conclusion was, normal sonogram of the liver, gallbladder, common bile duct , pancreas , spleen , abdominal aorta , both kidneys and urinary bladder; non visualized appendix; thin-walled non septated cyst, left ovary consider follicular cyst. Since April 2012, my menstrual cycle takes longer. Before i had only 1-7 days of menstruation but since discharge from the hospital i had almost 1 to 2 weeks of menstruation, 1-4 days of my menstruation is heavy to moderate and it s my normal menstruation while the succeeding days is like moderate bleeding to spotting and it s painless. Can you help me doctors about my condition? Thank you so much.

### output:

Hello! Thank you for the query. First an explanation for you.  Appendicitis can not be ruled out by ultrasound. Especially if the doctor who has performed the ultrasound didn't find the appendix. It simply means that your appendix could not be found with ultrasound. So if it was not found, it's inflammation cannot be ruled out. Moreover, about 50% of appendicitis is treated with antibiotics with very good response. But such inflammation can recur. So it is possible that you have the appendicitis again. This should be checked as soon as possible. So you should have abdominal ultrasound and fool blood work, liver and pancreas tests, urinalysis. Such symptoms can be also caused by mentioned by you UTI or kidney stones, ovarian inflammation, ovarian cyst rupture, pregnancy or even endometriosis. It is strongly advisable for you to visit gynecologist and have transvaginal ultrasound performed. Hope this will help. Regards.