Dehydration means loss of body fluids which means human body does not have enough water. Human body consists of about 75% water and it is essential to maintain it. Water is the life line of human and it is very necessary for our body. Dehydration is more common in children rather that adult. In our body most of water is found in the cells. Dehydration occurs when the amount of water loss is more than intake which further causes illness and weakness. There are three common types of dehydration: Hypotonic : Loss of electrolytes Hypertonic : Loss of water in the body Isotonic : This is equal loss of electrolytes and water in the body. Causes of Dehydration : Dehydration occurs when you do not intake enough water. Then our system literally dries out. It is can occur in any age of people it is most dangerous for babies, small children’s and older age people. Diarrhea, vomiting: It increases urination due to infection, skin injuries, vomiting with diarrhea, loss of fluids and minerals. Most