Potty training - when to start?!

[Smarshian]

My DD is 18 months and I had no plans at all to potty train her until at least 2 as didn't think she'd be ready.
The last 2 weeks though she keeps asking me to change her nappy when she has had a poo and this week keeps asking to sit on the toilet, although she doesn't wee or poo when I put her on there.
Is this a sign I should start doing anything or is it just her curiosity?

She's ready. Read " Oh Crap! It's Potty Training". It is a brilliant book and works for everyone! X

I’d just do with what she’s asking at the moment. No need to go for full potty training if you think she’s a bit young, but you can still sit her in the potty with a book for a couple of minutes if she asks. I did it at regular times like as I was running the bath and that seemed to help. Lots of no nappy time with a potty nearby seemed to help too

18 months is very young. I would just let her have some naked time with a potty around and not worry about properly trained yet.

Teach her to take her trousers up and down. Tell her come to the toilet with you and say ‘pants down, sit down’ and when finished ‘stand up, pants up’ as apparently lots of children get this order mixed up.

I have only just trained my 3yo. I think she has been ready for a loooooonnnng time (baby 2 got in the way).

Give it a go but with no pressure. Best case, you have a trained 18 month old, worst case you try again in a few months.

Does she have fairly dry nappies yet? A good sign that they are ready is if they are able to "hold" then do a big wee infrequently rather than lots of little wees constantly.
Also, being able to dress and undress themselves, or at least pull their pants and trousers up and down is a useful skill for successful potty training.