In Singapore, the criteria whereby insurance can reimburse for breast reduction is dependent on the weight of breast tissue removed. This would be more than 250grams per breast or more than 500grams in total. Severity of symptoms can be taken into consideration as well but usually on a case-by-case basis.
Abnormal enlargement of male breasts should be investigated, most importantly to exclude sinister causes such as male breast cancer (1% of all breast cancer). Usually, male breast enlargement is due to gynecomastia, which is a very treatable condition (see Gynecomastia).