Whether the thesis will be spot-checked after graduation depends on many factors. Generally, papers will not be randomly selected after graduation, but there are several situations that may lead to papers being randomly selected:

Inspection by higher authorities: If the higher authorities need to inspect the graduation thesis, they can randomly select the thesis. In this case, we should be ready to accept the inspection at any time to ensure that there is no plagiarism or other irregularities in the paper.

The Ministry of Education or other departments need to conduct spot checks: If the Ministry of Education or other departments need to conduct spot checks on graduation thesis, they can choose the thesis.

Some people report academic misconduct: if others report academic misconduct, the papers may be randomly selected. In this case, you need to respond positively to prove that the paper is original.