I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), FELLOWSHIP IN NEONATOLOGY ( Newborn and vaccination specialist )

Thumb sucking at three months of age helps in hand-mouth coordination and is normal at this age , but if it interferes with the child's social interaction, better to inform your paediatrician when you go for the next vaccination

Till 3 months old most babies sleep most of the time. 4 months onwards they start to enjoy communication and start babbling. Thumb sucking can be avoided by putting sterile pacifier until the baby falls asleep. Thumb sucking indicates hand mouth coordination necessary for future self feeding practice. Thumb sucking is not abnormal in young age till babies master hand dexterity and play activities. Later as they mature when they are busy with exploring activities with both hands the thumb sucking gradually disappears.

Greetings Thumb sucking is common in infants for self-soothing, but a sudden reduction in play, vocalization, and social interaction should be evaluated by a pediatrician. This shift in behavior could potentially indicate an underlying medical issue, an ear infection, or a developmental regression. It is important to monitor if she is meeting other milestones, such as smiling or tracking objects. To encourage engagement, you might try gentle floor play, using high-contrast toys, or increased skin-to-skin contact.

Thumb sucking at 3 months of age is a normal self-soothing behavior and by itself does not cause developmental delay. However, if your baby has truly become less interactive, has reduced eye contact, vocalization, smiling, tracking of objects, or overall activity compared to before, it should not be attributed to thumb sucking alone. Such behavioral changes warrant evaluation to look for underlying causes such as illness, feeding issues, sleep disturbances, or developmental concerns.

Thumb sucking is common at this age . But monitor other developmental milestones like social smile recognizing mother and neck holding attained or not and Cooing sounds . If all this milestones were there no need to worry . Give Tummy time with objects in front of her . For 10-15 min under supervision .

Thumb sucking at this age is common.No need to worry This is developmental mile stone

Its common

That's normal behaviour newborn don't worry Infact you baby is learning hand mouth coordination

No worry