Loans between husband and wife are usually not directly related to the man's household registration and parents. Loan is a kind of financial behavior, which is not directly related to the individual's household registration and family relationship. Loans are usually shared by both husband and wife, and both husband and wife have the responsibility to repay the loans regardless of the man's household registration and parents.

However, in some cases, the man's household registration and family relationship may have a certain impact on the loan. For example, in some cases, banks may require borrowers to provide guarantors or provide additional materials to ensure the repayment ability of loans. In this case, the man's family relationship may be taken into account.

Generally speaking, the responsibility for the loan is shared by both husband and wife, and the situation related to the man's household registration and parents is analyzed in detail, which needs to be determined according to specific laws and bank policies. If you have specific situations and problems, it is recommended to consult relevant professionals or banking institutions to obtain more accurate information.