Name the type of diseases that occur since birth.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the type of diseases that occur since birth. This refers to diseases that are present at the time of birth, rather than those that develop later in life.

2. **Identifying the Type of Diseases**: The diseases that occur since birth are known as "Congenital diseases." These diseases are typically genetic and can be inherited from parents.

3. **Causes of Congenital Diseases**: Congenital diseases can arise due to genetic factors, which may be inherited, or environmental factors that affect the fetus during pregnancy. For example, exposure to certain harmful substances or conditions can lead to congenital diseases.

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