Child excessive drinking

[w0rried3]

18 months old
Drank 3x 450ml bottles of water today which is doubly what he usually has. And nappies very very wet and full.
It only started today but has happened in the past for a day or 2 (unsure if coincidence but it was after he had a 'little dish' ready meal. Only ever had it last night and once around 6 months ago. His pee STUNK of cottage pie and was excessively drinking)

He's not had anything excessively salty or sugary that I'm aware of (been at work 12 hour shifts last 2 days).

Any ideas?
Diabetes? Don't want to jump to worst case scenario but also don't want to not think of it as a possibility

I think this warrants a discussion with the GP.

Mine always used to drink LOADS if teeth were coming through. Think it was the excess saliva. Would last a few days then stop.

Definite GP visit. I’d expect a wee test and a blood test.

@Lockdownmummy he does have a tooth coming through at the moment!

Going to call GP in the morning. I already have a urine pot so can take a sample with us

Most of the time these things are nothing to worry about. But you are doing the right thing getting it checked out.

Appreciate, this was last year, but any child especially around the ages of 2 and 3 who starts excessively drinking and going through nappies then please see your GP for a referral to Endocrine at your local hospital, please don't take no for an answer, see another Doctor if you need to! It could be Diabetes Insipidus which despite the Diabetes in the name has nothing to do with the Diabetes that everyone knows, it just means that the child can not regulate their water intake/outflow, because the secretion of or response to the pituitary hormone vasopressin is impaired, resulting in the production of very large quantities of dilute urine, often with dehydration and insatiable thirst. This could mean the pituitary gland at the base of the skull is damaged and this will need investigating, possible causes are an extremely rare condition which causes is this Langerhans' cell histiocytosis (LCH), and this needs to be diagnosed as soon as possible. Everybody has Langerhans cells on and in their body, these are normally protection cells and they stop infections from getting past your skin, however, a simple thing like having chicken pox can make them go rogue and they attack normal cells in the body. LCH either attacks vital organs which can be fatal or bone and the pituitary gland, the latter will affect a child's water intake/outflow as described above, and if not treated could destroy the pituitary gland's ability to make growth hormones. Treatment for LCH is normally done by Children's Oncology because they use chemotherapy to try and switch the LCH off, this doesn't mean it is a cancer, it is just that chemo is the most effective method of dealing with it, treatment in some cases can last two to three years, but it is the most treatable. If this sounds like your child then please get them seen by a doctor, children who have been treated for LCH will be on desmopressin for life.