Gastric ulcers are classified into benign and malignant types. Most duodenal bulb ulcers and gastric ulcers are benign and can be cured through medication. Treatment plans are usually determined based on the presence of Helicobacter pylori infection. Patients with Helicobacter pylori infection can be treated with antibacterial therapy. If there is no infection, symptomatic treatment alone is generally sufficient for a cure. If the ulcer is malignant or is a giant ulcer, surgical treatment is generally required. For those who cannot undergo surgery, radiotherapy or chemotherapy may be needed. Generally, the prognosis for malignant ulcers is worse than for benign ulcers.