 Ahmed Al-Qudra, a pediatrician at Nasser Medical Complex, told FDAT that, quote, a lack of clean water can lead to many water quality related diseases, such as diarrhea and skin diseases. But simply not having enough water can also lead to dehydration. The effects are worse for children who have weaker immune systems than adults and are more susceptible to dehydration, diarrhea, malnutrition and various diseases, all of which can worsen and pose a threat to their survival.