Signs of mild or severe dehydration include:

  • Mild to severe constant thirst
  • Dry or sticky mouth
  • Bad breath
  • Not peeing often & low volume
  • Dark yellow pee
  • Dry, cool skin
  • Headaches or migraines
  • Muscle cramps
  • Dizziness
  • Rapid heartbeat
  • Rapid breathing
  • Sunken eyes
  • Darkness around eyes
  • Sleepiness, lack of energy, confusion or irritability
  • Fainting
  • Constipation
  • Poor skin complexion
  • Wrinkles & sagging skin
  • Brittle hair & nails

Symptoms for babies and young children can be different than for adults:

  • Dry mouth and tongue
  • Dry diapers for 3 hours or more
  • Constipation
  • Sleepiness, lack of energy, or irritability
  • No tears when crying
  • Sunken eyes, cheeks, soft spot on the top of the skull

Severe dehydration can cause your body to begin shutting down, resulting in organ failure and should be addressed/treated immediately.