If u have a small face and a small head, will it grow ?

Yes: Yes by reconstructive surgery, consult a plastic surgeon , or oral surgeon who does these procedures by your twenties you reach your adulthood bones stop growing. Cost you have to find out from the surgeon, some times insurance covers.

Depends: At a listed age of 41, if you are asking for yourself you are done. About 90% of adult head size is reached by age 9 and sutures close preventing further growth before middle age.There is a proportion of the population that will have heads/faces on the smaller or larger size, based on genetic input.Skull and facial abnormalities noted in infants may require reconstruction by a craniofacial center.