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.
Causes of Dark skin: 1  Bruise. 2  Mole. 3  Malignant melanoma. 4  Seborrheic wart - also senile wart. 5  Freckles. 6  Cafe-au-lait spots. 7  Hyperpigmentation - and various causes of hyperpigmentation including: Sunburn. Radiation therapy. Adrenal disorder. Addison's disease. Liver disorder. Intestinal disorder. Malnutrition. Vitamin deficiency.