The Lower Urinary Tract Disease Feline (FLUTD) are frequent in clinical routine of this species is due to various disease processes characterized by hematuria, dysuria, urinary frequency, strangury, periuria and urethral obstruction, affecting mainly sedentary cats, living in the home and with low intake of water. In order to check the main clinical, laboratory and ultrasound in cases of FLUTD, 26 cats were available at the Veterinary Hospital of UFMT being 16 with FLUTD and ten healthy, noting that all the sick animals had azotemia, average of serum total calcium decreased and elevation in serum phosphorus. Bacterial growth observed in one third of cases, three possibly due to bladder catheterization, as were recurrent cases. The sonographic findings were compatible with frames of obstruction, such as severe distension of the urinary bladder and debris in suspension, dilated ureters and urethra.