dear user i want you not to be discared ..take it simply and seriously at same time your yellowish discharge you found refer mainly to infection of the urinary tract..........urinary tract infection has symptoms and signs such as discharge yellowish or whitish and some times bloody discharge may be found..........this discharge occur because of bacterial infection that leads to whatis known as pyuria which means pus in urine .........you will feel pain when urination and also when masterbation because bacterial infection cause severe inflammation and irritation of urinary tract........bloody discharge or founding red discharge also confirm infection........you need not to get worried or discared but i prefer you see your doctor and you should do urine culture for investigation and according to urine culture you administer antibiotics to role out this infection and get fine..........wish you healthy life