Dogs are one of the animals classified as pet animals, or it can be said to be animals that are close to humans. Feeding to dogs must be considered carefully, feeding patterns can affect urine pH, urine volume, and urine concentration which can cause the formation of mineral precipitation, such as uroliths consisting of various minerals. One of the health problems that occur in dogs due to nutritional imbalance is urolithiasis. Urolithiasis is the formation of sediment that is difficult to dissolve in the urinary tract. The purpose of this writing is to report the process of handling urolithiasis through cystotomy in a dog named Lucky with a male Pom mix dog breed aged 7 years and weighing 11 kg is a rescue dog. Lucky's dog experienced pain when urinating (stranguria), urine came out below normal (oligouria), bloody urine (hematuria), and had no appetite to eat and drink since 3 days before being treated. Dogs are usually given dry dog food feed mixed with rice and chicken with ad libitum portions. 1.5 years ago dogs had difficulty urinating but did not bleed. Based on the results of the history, clinical examination, supporting examinations in the form of chemical examination of urine and X-ray, the dog has urolithiasis. Dog cases are treated with cystotomy surgery to remove calculi by incision of urinary vesicles. Postoperative therapy, dogs are given an injection of the antibiotic cefotaxime sodium 20mg / kg body weight with the IM route and given anti-inflammatory tolfedine CS 4ml / kg body weight. Based on a series of examinations carried out, it can be concluded that animal cases have urolithiasis and handling cases of urolithiasis in dog cases can be done with cystotomy. To avoid the occurrence of urolithiasis in urinary vesica in dogs, client education is needed on how to maintain and select feed that contains balanced nutrition.