Cause: Infection
Muscle stiffness can be a result of various infections. Influenza, for instance, is known to cause muscle stiffness due to the damage it inflicts on cells in the body. This damage leads to inflammation, resulting in symptoms such as coughing, headaches, fever, and muscle aches. However, it is important to be aware of other potential infections as well. For those living in areas with ticks, it is crucial to watch out for round rashes that could indicate Lyme Disease. Additionally, a red and swelling mass in the muscle could be a sign of a muscle abscess. If the muscle stiffness persists for multiple days or becomes extremely severe, it is advisable to consult a doctor for further evaluation and appropriate treatment.
Cause: Autoimmune Disease
When experiencing frequent difficulty in movement or prolonged muscle stiffness, it could indicate an underlying autoimmune disorder. Several conditions can lead to the body mistakenly attacking its own healthy muscle cells. Examples of such conditions include myositis, scleroderma, arthritis, and vasculitis. Additionally, certain chronic health conditions, while not autoimmune disorders themselves, can still impact the immune system. For instance, fibromyalgia often causes muscle stiffness, unexplained pain, and extreme fatigue.