WASHINGTON (AP) — The Consumer Financial Protection Bureau says borrowers are reporting widespread problems with the companies servicing their student loans.

The bureau reported Tuesday that these problems "may be contributing to student debt stress." It analyzed more than 30,000 public comments. Among the problems cited were: lost paperwork and delays in processing that could lead to missed payments and late fees.

The agency, which oversees the student loan industry, said it will consider industry-wide rules for the companies that manage student loans.

Student loans make up the nation's second-largest consumer debt market, after mortgages. More than 40 million people hold federal and private student loans totaling more than $1.2 trillion. One in 4 student loan borrowers is in default or struggling to stay current.