a recognition that genres are situated within discourse communities, wherein the beliefs and naming practices of members have relevance an emphasis on communicative purpose and social action an interest in generic structure (and its rationale)
Because of the potential implication of circulation disorders, darkened skin around the ankles that is not immediately explainable by simple environmental factors should be promptly called to the attention of a medical doctor for appropriate diagnosis and treatment.
Other Causes -- Here are a few more things that could contribute to the formation of dark spots on your elbows and knees: 1  Certain medications. 2  Certain diseases (obesity, Addison's syndrome, etc.) 3  Hormone imbalances.  Hyperpigmentation of the 1  skin. Active melanocytes in your elbows or knees.