Yu Junde, coordinator of Survey and head official of Shanghai Women's Disease Rehabilitation Commission has cautioned women against improper wearing of bras which could affect their health.
The survey was conducted on 1,000 women between ages of 18 to 50, which revealed that many were wearing very tight bras.
A 'Bra and Breast Cancer Study' conducted in the United States, had revealed a significant link between bras and breast cancer that is three times greater than the link between cigarette smoking and lung cancer.
Their study also revealed that wearing a bra over 12 hours daily conferred a 113 fold increase in breast cancer incidence.
Because of the pressure bras apply to the breast, the lymphatic system is also affected. The lymphatic system consists of tiny, thin-walled vessels, which drain away toxins, cell debris, pathogens like bacteria, viruses and even cancer cells from the breast tissue. And since these vessels have no internal pressureby themselves, they are easily compressed by external pressure, for instance a bra, for instance causing congestion of the tissues. Therefore a tight bra would close the lymphatic pathway from the breast to the lymphatic nodes, causing fluid build-up, swelling, tenderness and cyst formation.
The past month had also seen a report about the increasing the breast size of Chinese women which has made many lingerie companies to shift to a production of larger bras for Chinese women.
For instance the Hong Kong-based lingerie firm Embry Group has stopped production of A-cups for larger chest circumferences because of less demand and has instead increased production of C-, D- and E-cup bras to cater to its rising demands.
Embry opened special counters for its bigger-cup bras in February and is planning more outlets across the nation, the China Daily reported.
The clothing technology institute had released a report, which mentioned the increase in size of the average chest circumference of Chinese women by nearly 1cm to 83.53cm since the early 1990s.
They attributed this phenomenon to better and increased nutrition among the present women as well as increased participation in sports.
A similar growth in the average height of children had prompted a review of the height allowance for free bus rides for children in Beijing, last year.