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.
, Immunologist, Ph.D. Etiology is the (usually unknown) set of causes of the disease. It's important to keep in mind that etiology is not only disease-specific, it's also person-specific, in that a set of factors can cause Disease X in one person but not another (given their genetics, how they grew up, their fitness level, their co-exposures, etc.).