👉 Underdrainage is a medical condition that occurs when the blood vessels in your body become narrowed or blocked, which can lead to symptoms such as shortness of breath, chest pain, and heartburn. This condition can be caused by several factors, including smoking, alcohol intake, obesity, and certain medications. Treatment for underdrainage may include lifestyle changes, medication, or surgery if necessary. It's important to consult a healthcare professional for proper diagnosis and treatment options.