টিবির লক্ষন হল লাল ও বড় চোখ,ধূসর ত্বক,রক্তযুক্ত কফ ইত্যাদি।
People with TB often have symptoms such as red, swollen eyes (which also creates a sensitivity to bright light), pale skin and coughing blood, suggesting the idea that the only way for the afflicted to replenish this loss of blood was by sucking blood.