Learn how to use shea butter for muscle pain. What is Muscle Pain? Muscle pain is also known as myalgia in medical terms. It is the result of inflammatory conditions, overexertion or injury, infection in the soft tissues and more. Muscle pains can be peculiar to a muscle group or affect many muscle groups as a time. A number of things can cause muscle pain. Some of the causes of muscle pain include: tension, stress and strenuous physical activities Health conditions like thyroid problems (hyperthyroidism and hypothyroidism) Autoimmune disorders like dermatomyositis, lupus and polymyositis, Continue Reading