Bladder cancer is a common urological malignancy, mostly seen in men in the 6th and 7th decades. It is less common in women and very rare during pregnancy. Inverted papilloma is a tumor where surface epithelial cells grow into the underlying supportive tissue. It may be detected in the urinary tract and in particular in renal pelvis, ureter, bladder and urethra, and may mimic malignancy. Diagnosis and treatment is hard because of pregnancy and the best treatment option is not certain due to lack of experience. Here is a case of inverted papilloma in a pregnant woman which was followed up by a team of urologist, anesthetist, obstetrician and neonatologist.