my Lo (10month old) is teething.. but the weird part is.. tooth coming out one by one..is it suppose to come out one by one or two at a time? the central incisors.

Different baby grow differently. As long they are growing their teeth u should be happy. My fren kids took 2 years plus to grow her 1st tooth, so can u imagine it's a bit difficult to intro more harder food and it's more cranky to help them when they are older.