CT is better compared to ultrasound when it comes to stomach pain. There are many items for stomach examination, such as gastroscopy and CT, but generally not ultrasound. The stomach is a hollow organ, and ultrasound is ineffective and inaccurate due to the interference of the gas inside the stomach, while CT is generally not interfered by the gas inside the stomach, and it can find some stomach diseases, so CT is better when you have stomach pain. The stomach is prone to many diseases, such as gastric ulcer, gastritis, gastric tumors, etc. CT can only detect gastric tumors and other diseases, while gastroscopy can detect common gastric diseases, so it is recommended to improve the gastroscopy if stomach pain occurs.