A number of things can break blood vessels along this route or along the urinary route to the urethra...since you are having burning micturation it may be due to urinary tract infection...Urinary tract infections can be painful, but you can take steps to ease your discomfort until antibiotics treat the infection.....Drink plenty of water. Water helps to dilute your urine and flush out bacteria....Avoid drinks that may irritate your bladder.... Avoid coffee, alcohol, and soft drinks containing citrus juices or caffeine until your infection has cleared. They can irritate your bladder and tend to aggravate your frequent or urgent need to urinate..Regards.

Hematuria, or blood in the urine, can be either gross (visible) or microscopic (blood cells only visible through a microscope). The causes for microscopic hematuria could be urinary tract infection, renal stones, trauma, medications, etc. Your symptoms are suggestive of urinary tract infection as the other causes would've been spotted in your investigations. You would require antibiotics, antacids and an alkalyzing agent. Stay hydrated, aim to drink 3 liters of water per day. If the condition persists or worsens visit the urologist at the earliest.