Dehydration means your body loses more fluids than you take in. If it's not treated, it can get worse and become a serious problem.

Important

Babies, children and older adults are more at risk of dehydration.

Symptoms of dehydration in adults and children include:

• feeling thirsty
• dark yellow, strong-smelling pee
• peeing less often than usual
• feeling dizzy or lightheaded
• feeling tired
• a dry mouth, lips and tongue
• sunken eyes

Signs of dehydration in a baby may include:

• a sunken soft spot (fontanelle) on top of their head
• sunken eyes
• few or no tears when they cry
• not having many wet nappies
• being drowsy or irritable

Dehydration can happen more easily if you:

• have diabetes
• have been sick or have diarrhoea
• have been in the sun too long (heatstroke)
• have drunk too much alcohol
• sweat a lot after exercising
• have a high temperature
• take medicines that make you pee more (diuretics)

You should drink fluids if you have symptoms of dehydration.

If you feel sick or have been sick, you may find it hard to drink, so start with small sips and then gradually drink more.

A pharmacist can help with dehydration

If you're being sick or have diarrhoea and are losing too much fluid, you need to put back the sugar, salts and minerals your body has lost.

A pharmacist can recommend oral rehydration solutions. These are powders that you mix with water and then drink.

Ask your pharmacist which rehydration solutions are right for you or your child.

Find a pharmacy

Ask for an urgent GP appointment or get help from NHS 111 if:

Once dehydration has been treated, it's important that your child's fluid levels are maintained.

Drinking fluids regularly can reduce the risk of dehydration. Water or diluted squash are good choices.

You should drink enough during the day, so your pee is a pale clear colour.

Drink more when there's a higher risk of dehydrating. For example, if you're being sick, sweating due to hot weather or exercise, or you have diarrhoea.

Children under the age of 5 should get plenty of fluids to avoid dehydration.

Helping someone you care for

A person you care for may not have a sense of how much they're drinking.

You can help them by:

• making sure they drink at mealtimes
• making drinking a social thing, like "having a cup of tea"
• offering them food with a high water content – for example, soup, ice cream, jelly and fruits like melon