Hi,
Since when have you been having the abdominal cramps? Do you have any associated diarrhea or constipation? Are
you having or about to have your menstrual cycle? Do you notice any complaints/ symptoms in relation to your
menstrual cycles?
What was the colour and quantity of blood approximately that you observed - was it blood tinnged or frank
blood was present?
Are you on any medications currently or is there any significant past medical history?
'The well-known causes of blood in the urine include the following:
* Kidney stones
* Infections of the urinary tract or genitals
* Blockage of the urinary tract, usually the urethra - by a stone, a tumor, a narrowing of the opening
(stricture), or a compression from surrounding structures
* Cancer of the kidney, bladder, or prostate
* Kidney disease
* Blood clotting disorders
* Injury to the upper or lower urinary tract, as in a car accident or a bad fall
* Medications - Antibiotics [for example, rifampin (Rifadin)], analgesics such as aspirin, anticoagulants
[blood thinners such as warfarin, (Coumadin)], phenytoin (Dilantin), quinine (Quinerva, Quinite, QM-260)
* Chronic diseases such as diabetes, hypertension, and sickle cell anemia
* Viral infections
* Inflammation of the kidney - usually of unknown cause
* Strenuous exercise, especially running.'
http://www.emedicinehealth.com/blood_in_the_urine/page2_em.htm
It would be best to consult a certified physician and get yourself evaluated for the cause of your symptoms.
The further management would depend on the cause of your symptoms.
Let us know if you need any further information and post us about what your doctor advises.
Regards.