Pathology and homeopathy are two fields of scientific research that go hand in hand. As a matter of fact, homeopathic research on a disease is always accompanied by a pathological study of that disease. Pathology is the scientific field that studies diseases, while homeopathy is a gentle method for treating diseases. Homeopathic treatment follows the principles of similarity (Similia similibus curentur or "likes are cured by likes") and comprehensiveness. There is no universal treatment for a given disease; it must be adapted to each patient.