The number of breast cancer cases has rocketed in the last three decades, but death rates are falling, figures show.
Mammography can help detect breast cancers
The data from the Office for National Statistics showed that from 1971 to 2004 the number of cases of the disease rose by 81% to 36,939 cases in England.
But deaths from the disease have fallen by a fifth since 1989 to 12,417 due to better treatment and earlier detection.
Experts said the rise in cases was being fuelled by lifestyle changes and the start of national screening.
MOST COMMON FEMALE CANCERS
Breast - 36,939 cases (31.9% of total)
Bowel - 13,020 cases (11.2%)
Lung - 12,337 cases (10.7%)
Factors such as obesity and drinking alcohol are known to increase the risk of a woman getting breast cancer.
The ageing population is also a factor, but this was taken into account by ONS statisticians when compiling the figures.
But Mark Matfield, scientific consultant for the Association for International Cancer Research, said the fact that women were having smaller families and breast-feeding less also played a part.
"It is hard to pin down exactly what has caused this rise. These lifestyle factors are having a significant impact, but so has the introduction of the national screening programme in the late 1980s.
"Better nutrition also mean the age of the first period is falling and this increases risk later in life.
"It is a complex picture."
Sir Richard Peto, a cancer expert at Oxford University, warned against reading too much into the rises in the number of cases.
"Incidence is not reliable, it fluctuates depending on how well you measure it and record it.
"The thing that matters most is the decreases in the deaths."
MOST COMMON MALE CANCERS
Prostate - 29,406 cases (25% of total)
Lung - 18,071 cases (15.3%)
Bowel - 15,817 cases (13.4%)
And Dr Lesley Walker, of Cancer Research UK, advised women of the precautions they could take to reduce the risk of breast cancer.
"A balanced diet and regular exercise can help women maintain a healthy weight which lowers the risk of several common cancers.
"Over the age of 50 women should ensure that they go for breast screening when invited.
"Women should also be aware of any significant family history of cancer and keep their doctor informed."
The figures also showed that breast cancer accounted for one in three newly diagnosed cases of cancer in females. Bowel and lung cancer where the next most common.
For men, prostate cancer was the most common, accounting for 25% of the total number of cancers. Lung and bowel cancer were the next most prevalent.
Prostate cancer in particular has shown a sharp increase since 1990, doubling to 98 cases per 100,000 due to better testing methods.