Surgery for a 2cm hiatal hernia is usually determined on a case-by-case basis. Surgery for hiatal hernia depends on the severity of the symptoms, the presence or absence of complications, and the patient’s physical condition, and there is no absolute correlation with the size of the hiatal hernia, but the huge hiatal hernia is usually considered for surgical treatment. Most patients with hiatal hernia do not have obvious symptoms or complications, which can be relieved with medication; elderly patients with poor health and multiple underlying medical conditions are not considered for surgery and need to be treated with medication. Surgical indications for hiatal hernia include: paraesophageal hiatal hernia; hiatal hernia combined with reflux esophagitis, with repeated episodes of symptoms that have been ineffective with medical treatment; reflux esophagitis, with serious complications such as recurrent respiratory inflammation, esophageal ulcers, bleeding; and giant hiatal hernia with symptoms of compression or obstruction. If the patient has a hiatal hernia, he should go to the hospital as soon as possible, and the doctor will provide targeted treatment according to the specific situation.