Dahiliye is a branch of medicine that focuses on the diagnosis and treatment of internal diseases. It encompasses a wide range of health issues affecting various organs and systems within the body, such as the heart, lungs, and digestive system. Physicians specializing in this field are known as internists. Internists often serve as primary care doctors, providing comprehensive care for adults. They are trained to manage complex medical conditions and coordinate treatment plans, ensuring that patients receive appropriate care for chronic illnesses and acute health issues. Their expertise is crucial for maintaining overall health and well-being.