What should I do if my fontanel has not closed at 2 years and 3 months?

2 years 3 months old baby fontanel did not close, may be related to calcium deficiency, hydrocephalus and other factors, can be calcium supplements, surgery, medication and other treatment to improve.
1. Calcium deficiency: If the fontanel of a 2-year-old 3-month-old baby is still not closed, it may be related to the body’s lack of calcium, which can be treated with calcium carbonate D3 granules and other medications under the guidance of a doctor, and at the same time need to pay attention to the appropriate sun exposure, which can promote the body’s absorption of calcium.
2. Hydrocephalus: hydrocephalus can also lead to late closure of the fontanel, you can go to the hospital for relevant examinations, if it is determined that there is hydrocephalus need to use such as mannitol and other inhibitors of the secretion of cerebrospinal fluid as well as diuretic drugs, such as furosemide, etc., serious hydrocephalus requires surgical treatment.
It is recommended that babies aged 2 years and 3 months whose fontanelles are not closed should seek prompt medical attention and be examined and treated accordingly under the guidance of a doctor to avoid undesirable consequences. All of the above medications are recommended to be taken under a doctor’s supervision.