Wait and watch

If possible share a pic. Sometimes eruption cyst may also looks like that.

It seems like nursing bottle caries bcz of long-term usage of feeding bottles r breast feeding during sleep.they sleep with the bottle in their mouth for a long time.u can visit a pedodontist before it gets affected to other tooth

No it’s not normal. If gums are black then it can be a cyst or if tooth is black then it can be due to breast feeding or bottle feeding. Don’t ignore it . Plz visit dentist or this can spread to other tooth also

Hi, Please visit a dentist and get an examination. Is your son taking any iron supplements ?

It may be carious tooth Don’t keep milk bottle in baby’s mouth for long Wipe his teeth with wet cotton

No, it's normal. If possible, please share a clear pic or do visit a local pedodontist for physical evaluation and treatment (as/if required).

Please share the pic so that we can guide you properly

Mostly tooth started to come in mouth around 6 months of age for infants, but they are in milky white to creamy white. If it is in brown or black colour means it may be developmental defect or nursing bottle caries .which is caused by long term keeping the feeding bottle in baby’s mouth, please consult your nearest dentist once.