Drugs are the chemical substances that are used for the treatment or cure of various diseases or physical and mental disorders. But when the drug is taken only for pleasure and habit is called drug addiction. It is detrimental to health and leads a man to confirm the death. The person who once starts taking drugs cannot stop it. So, drug addiction has become a major problem in the world including Bangladesh and India. There are various types of drugs such as Yabba, cocaine, marijuana, morphine, opium, heroin, Phencyclidine, and so on. All these drugs cause unwanted death. For many reasons, people are addicted to the drug. Frustration is one of them. Besides this unemployment problem, lack of family ties, lack of love and affection, political anarchy, social unrest, etc. are the most common reasons for drug addiction. The after-effects of drug addiction are terrible. It destroys the addicts physically, mentally, socially, and financially. The Health of drug addicts breaks down. After taking the drug the addict feels drowsy, loses appetite, and falls asleep. It demolishes mental power and courage. It causes cancer, blood pressure, heart disease, amnesia, insomnia, and many other respiratory diseases. It also causes brain, kidney, and liver damage. It kills a man slowly but surely. Sometimes the addicts not being able to buy costly drugs, they commit various crimes like hijacking, looting, and robbery, plundering and killing. So, Drug addiction should be stopped anyhow. To get rid of drug addiction Govt. should prohibit the production of harmful drugs. Drug trafficking also has to be controlled strictly and traders should be punished seriously. People also will have to be aware of the harmful effect of drugs. Mass media can also play a vital role to solve the problem.