Dengue fever has now become a serious problem in Bangladesh. Each and everyone in our country is panicky due to this dangerous disease. The scarcity of bed occurs in hospitals and clinics. Dengue is an R. N. A. Fiabby viral extreme fever. As African female mosquito named ‘Adies Egypty’ carries the garm of this disease. It lays eggs in the stagnant water of any place. There are two types of dengue fever-Classical and Hemorrhagic. Dengue virus has four serotypes. They are DEN-1, DEN-2, DEN-3, DEN-4. Any of them can cause dengue fever. But DEN-2 and DEN-3 are too much dangerous. These two serotypes are responsible for most serious Hemorrhagic dengue fever. Classical dengue fever is not so serious like Hemorrhagic. The symptoms of classical dengue fever are high fever, vomit, stomach-pain, excess headache, pain at joint of bones, waist, and backside of eyes. Sometimes bone-pain becomes so extreme that it seems to break of bone. So it is called ‘Break bone fever’. Anyone recovers from it within ¾ days. Sometimes the patient feels weak and aversion. But Hemorrhagic dengue fever often causes the death of a patient. The symptoms of classical dengue fever become extreme in this case. Bleeding continues with these symptoms. Especially bleeding causes from gum and nose. Congealed blood and reddish circle are seen under the skin. It causes blood-vomit. Congealed blood in the white portion of eyes is found. Black blood goes with stool. Internal blood can be caused even in brain and heart. It causes ‘hypovolemic shock’ which may cause patients’ death. Dengue fever is not an infectious disease. Still, effective treatment has not come out. Doctors prescribe medicines for pain and vomit. Sometimes saline is pushed through vain. But it’s not enough at all. Actually ‘prevention is better than cure’ is perfect in dengue fever. The only way is to control and destroy Adie's mosquito. To do so, we should keep our surroundings neat and clean and free of stagnant water. Dengue patient will take formal and liquid food and sufficient water repeatedly. If each and everyone become conscious, dengue fever can surely be eradicated from our country.