If youâre concerned about disc protrusions, a general list of symptoms to watch for include: 1  Discomfort, numbness and tingling in the affected area and associated limbs. 2  Localized neck and back pain. 3  General stiffness and soreness, especially in the morning or after periods of inactivity. 4  Sciatica. 5  Muscle weakness.
Definition of ETIOLOGY. 1. : cause, origin; specifically: the cause of a disease or abnormal condition. 2. : a branch of knowledge concerned with causes; specifically: a branch of medical science concerned with the causes and origins of diseases.
According to Dictionary.com, the noun etiology comes from the Ancient Greek word ?????, or aitiologia, from ?????, or aitia, meaning cause. The suffix -logy denotes that the term refers to an area of scientific study or a specific body of knowledge. It was originally used in English during the 16th century.