One old and one young social security card in Beijing was lost and reissued.

Legal analysis: after losing the medical insurance card, you should immediately report the loss to the nearest medical insurance network. Usually, the owner only needs to report his medical insurance card number or ID number to the loss reporting point of the medical insurance office. If he can't remember the medical insurance card number and ID number, he can also report the company name. After the loss of the medical insurance card is reported, the medical insurance office will immediately freeze the medical insurance card, and even if someone finds it, they can't spend it. After the citizens report the loss, they can apply for a new card at the Medical Insurance Office with their ID card, medical insurance guarantee or unit certificate, and the Medical Insurance Office only charges a fee of about 7 yuan.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 4 Employers and individuals who pay social insurance premiums according to law in People's Republic of China (PRC) have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Fifth people's governments at or above the county level shall incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.

The state supports social insurance through preferential tax policies.