Make sure your vegan diet is nutrional. You still need to get the proper amounts of healthy protein, carbohydrates, and fats, as well as vitamins, minerals, enzymes and water. Just 'cause it's vegan doesn't mean it's balanced. Make sure you know from where the "blood" originates. You need to rule out blood in the urine, ie
renal and bladder bleeding. If you do not drink enough water, ...