It is normal for babies not to grow teeth at seven months, and it is normal for babies to grow teeth within six to ten months. Babies usually start to erupt their first milk teeth around six months, and some babies will grow their teeth relatively late; so if there is no obvious abnormality in the baby’s diet, sleep, height or weight, it is normal for the baby to have no teeth at seven months, and parents need not be particularly worried, but can continue to observe first. If more than ten months or so teeth have not erupted, it is recommended to consult a pediatrician for symptomatic treatment, such as checking the lack of micronutrients, you can follow the doctor’s instructions for timely supplementation; if there is still no tooth eruption after two years of age, it is recommended to consult a stomatologist to check whether congenital tooth loss, so as to timely dental restoration in order to restore its chewing and pronunciation function.