Hello.. My baby is 2 years 4 mnths old from past 1 year i noticed a lump in his neck.but now the size of the lump is increased.and some new lump nodes are enlarged...his pediatrician was not worried about this.i am asking several times about the lump when ever we visit for check ups but doctor was not concerned about that lumps.and said enlarged lump nodes are common in children up to the age of 6 to 8 years. But I was concerned about this Plz reply me regarding this concern