It is normal for a baby to have 7 teeth at 8 months, as long as the tooth structure is normal. Generally children start erupting their first teeth from 4 to 10 months of age, and it is a long process in between when they erupt their milk teeth at around 2 or 2 and a half years of age. If the first tooth has not erupted for more than 13 months, it is considered delayed teething. The number of milk teeth within 2 years of age is the age in months minus 4, which means that most children have 4 teeth at 8 months of age. However, if 7 teeth come out at 8 months with normal tooth structure, it is also considered normal. During the period of budding, it is important to pay attention to oral hygiene, drink a little water after eating milk to help clean the mouth, and give the child the appropriate nutrition. If the child has pillow baldness, night terrors, etc., you need to consult a doctor to rule out calcium deficiency, which can affect the eruption of teeth.