Most types of hypospadias are treated with a single operation, which is very likely to be successful.
Some severe varieties may need the surgery to be done in two stages. After the first operation, another one to complete the corrective process is done after at least 6 months.
The choice of a single operation or a staged correction should be left to the surgeon. Unfortunately, in some boys , the first operation may not be a success. In that case, another operation may be needed after at least 6 months to correct the problem.