If your baby is 11 months old and still has no teeth, it may be due to physiological factors, calcium deficiency and other factors. 1. Physiological factors: usually most of the baby milk teeth eruption time in 6 ~ 10 months, due to individual differences lead to milk teeth eruption time is different. Some babies may already have erupted their milk teeth at the age of 5 months, while some babies may only start to erupt their milk teeth at around 11 months. If the physical development is all within the normal range, it is considered to be caused by physiological factors and observation is recommended. If the baby has not erupted any teeth beyond 13 months, it is recommended to consult a doctor in time for treatment. 2. Calcium deficiency: If the baby’s intake of calcium is insufficient, it will lead to calcium deficiency and cause late eruption of milk teeth. If accompanied by X-shaped legs, chicken chest, not easy to fall asleep, easy to wake up after falling asleep and other symptoms, it is considered that the baby is caused by calcium deficiency. There may be other reasons for your baby’s lack of teeth at 11 months of age, so we recommend that you visit a hospital in time for a complete examination to determine the cause of your baby’s teeth, and then provide targeted treatment or therapy.