The main reasons for the white crystal particles after the removal of the vesicostomy tube are urinary tract infection and bladder stones, etc. The main reasons for the white crystal particles after the removal of the vesicostomy tube are urinary tract infection and bladder stones. 1. urinary system infection: vesicostomy tube as a foreign body, as long as the body will cause the body to undergo a rejection reaction, resulting in an increase in local secretions, increased secretions of the main components of leukocytes, epithelial cells, etc., over time will form a white crystalline particles. 2. Bladder stones: white crystal particles may be fine bladder stones, a mixture of leukocytes, epithelial cells and inorganic salts in the urine. There may be other reasons for the white crystals after the vesicostomy tube is removed, so you should follow the doctor’s instructions for regular checkups after vesicostomy, and inform your doctor if you feel unwell. Do not take any action without authorization, as this may lead to a delayed condition and a poor outcome.