There are several reasons why girls may drop out of school before completing their Secondary School Certificate (SSC). These reasons can vary based on regional, socio-economic, cultural, and individual factors. Here are some common ones:

1. **Economic Factors**:

   - **Poverty**: Families struggling financially may prioritize work over education, pushing girls to contribute to household income.

   - **Cost of Education**: Even if tuition is free, other expenses like uniforms, books, and transportation can be burdensome.

2. **Cultural and Social Norms**:

   - **Early Marriage**: In many cultures, girls are married off at a young age, which often leads to discontinuation of their education.

   - **Gender Roles**: Traditional views may prioritize boys' education over girls', expecting girls to take on household responsibilities instead.

3. **Safety and Security**:

   - **School Distance**: Long and unsafe commutes to school can deter girls, especially in regions where they face harassment or violence.

   - **School Environment**: Lack of adequate sanitation facilities, including separate toilets for girls, can be a significant barrier.

4. **Educational Quality and Relevance**:

   - **Poor School Infrastructure**: Inadequate facilities and resources can discourage attendance and engagement.

   - **Low Academic Performance**: Girls struggling academically without sufficient support may feel disheartened and drop out.

5. **Health Issues**:

   - **Menstrual Health**: Lack of access to sanitary products and knowledge about menstrual health can cause girls to miss school and eventually drop out.

   - **General Health**: Chronic health issues or a need to care for sick family members can interrupt and end girls' schooling.

6. **Discrimination and Abuse**:

   - **Bullying and Harassment**: Gender-based violence and harassment in or around school can create an unsafe learning environment.

   - **Discrimination**: Biases from teachers and peers can lead to a discouraging environment.

Addressing these issues requires comprehensive strategies, including financial support for families, community awareness programs, safe and accessible schooling environments, and policies that promote gender equality in education.