The digestive process of our body resembles a complex and elaborate orchestra. Among its parts, bile acts like both the conductor and a key instrument. Bile, produced by the liver at about 500 to 1,000 ml per day, is stored in the gallbladder. When we consume food and fatty components enter the small intestine, a hormone called cholecystokinin is secreted, causing the gallbladder to contract and discharge bile into the small intestine. This bile breaks down fats into smaller particles through emulsification into a form easily acted upon by digestive enzymes, and plays a vital role in aiding the absorption of fat-soluble vitamins. For proper digestion, it is essential that bile is released in a timely manner.
However, problems can arise in this bile ejection process, namely the contracting of the gallbladder and opening of the biliary tract, the pathway through which bile travels. This condition is collectively called biliary dyskinesia. Biliary dyskinesia occurs when functional issues arise, such as weakened contractility of the gallbladder itself or the failure of the sphincter of Oddi, which acts as the door through which bile exits into the small intestine, to open at the right time or contracting excessively. Even without distinct structural abnormalities such as gallstones or tumors, it induces epigastric pain and dyspepsia symptoms just like gallstones, causing immense distress to patients. Many individuals visit clinics for this issue only to receive a diagnosis of psychogenic problems, ending up frustrated without finding the root cause.
The primary symptoms of biliary dyskinesia align with the stuffiness and heat below the epigastrium described in Donguibogam. Representative symptoms include pain in the right upper quadrant or epigastrium occurring after meals, especially after eating greasy foods, along with stuffiness, dyspepsia, bloating, nausea, and vomiting. Because bile is not secreted properly, fat digestion becomes difficult, leading to stomach discomfort and a congested feeling. Some patients report chest pain or pain radiating toward the back, and many suffer from chronic dyspepsia for a long time. These symptoms closely resemble other gastrointestinal diseases such as reflux esophagitis, gastritis, and pancreatitis, making accurate diagnosis essential.
Modern medicine performs several tests to diagnose biliary dyskinesia. First, abdominal ultrasonography is performed to check for gallstones or structural abnormalities of the gallbladder. If no abnormalities are found, a gallbladder function test such as a HIDA scan with cholecystokinin stimulation is considered. This test injects cholecystokinin via a vein to measure the gallbladder ejection fraction. If the gallbladder ejection fraction drops below a certain threshold, usually 35 to 40%, gallbladder hypofunction is diagnosed. In some cases, more precise evaluations such as endoscopic retrograde cholangiopancreatography (ERCP) to measure sphincter of Oddi pressure or endoscopic ultrasound (EUS) may be required. If you are struggling with dyspepsia of unknown cause, considering these evaluations is worthwhile.
From the perspective of Korean medicine, such biliary dyskinesia can be closely linked to liver qi stagnation, gallbladder heat, and spleen-stomach deficiency and weakness. When liver qi becomes obstructed due to stress or overwork, it affects the gallbladder paired with the liver, causing bile secretion and circulation to stall. This corresponds to the dysfunction of nervous system regulation described in modern medicine, particularly an imbalance between the parasympathetic nervous system and enteric nervous system. In addition, dietary habits frequently involving greasy meals or overeating accumulate damp-heat in the gallbladder, thickening the concentration of bile and making its discharge even more difficult. Thus, while Eastern and Western medicine describe bodily discomfort in different languages, they reveal identical causal relationships beneath the surface. Ultimately, both disciplines convey that only when bodily balance and communication are harmonious can bile flow smoothly and digestion become comfortable. Restoring the digestive rhythm of your body can serve as the most crucial key to healing.
