Most Hindu families conduct a Mundan ceremony or chudakarana for their infants. Muslims also shave off the baby’s head while Sikhs do a kesi dahi ceremony in which curd is poured in the hair of a newborn baby boy. In Islam, it is done between 7-40 days for hygiene purposes and hindus do it anytime after 4 months but mostly around 9 months, 1 year and 3 years.
it was a practice followed by all religions and used to be performed by native Americans as well.
A fully clothed baby may make Vitamin D faster if a tonsured head is exposed to sunlight.
Baby would also pull its own hair and the matted hair would get stuck in her fingers and would hurt her.
Getting a mundan done for my baby also helped with getting rid of its cradle cap.
The hair might look fuller and better after baby’s first tonsure because the hair grows out evenly
Some religions simply perform mundan to celebrate the milestone of the baby
The significance is to draw attention of parents towards the mental and spiritual development of the child and to keep the society informed about the progress that the child is making.