When you’re deficient in vitamin A, you’re at risk for urinary infection. When you experience a urinary infection, there are two infections that take place. One is in the urinary tract, and the other is in the kidney. Symptoms of a urinary tract infection include pain while urinating, frequent trips to the bathroom, and a constant feeling that you need to urinate. A urinary tract is more common than you think, but vitamin A deficiency is always a factor.