Hetal,

My son is 17mth old....has just stopped eating completetly....he refuses to open his mouth.I tried all variety of food,take him out n feed,stand on the window,even in the bath tub,but all in vain....he is not teething...is this a phase ?
Hetal replied. i doubt he is teething molars !
try to change the texture of food you are offering..he might find a change.
how about making him eat himself..some kids like to eat that way !
check on his weight, wat all he used to eat, if he continues to do so for another couple days, take an appointment with dr.right now its the season of virals all around..not to scare you but stopped eating suddenly, fussing without reasons, crying for no reason, not eating for more than 2 days, not drinking enough milk or fluids, hitting his hand on head,,all are possiblits for it.
sometimes kids do that, upto 2-3 days, then come back to food after a good fast...just like sometimes we dont feel like eating,,,if you observe, we are not able to eat same qty of food thru out the week, on daily basis...
check on his weight,his activity levels and whether or not he gets tired while playing, his sleeping schedule and all..if its different than before, he might be going thru a maturing phase, but please note that these changes are not sudden but gradual.

so observe on that,,try offering him choices in foods, one bite of one food and other of other food,,he might get interested...
there are not much reasons i can see that are good enough for 17month old to stop eating.
still he continues to do same, after 3days, take him to dr.
good luck