Progress in cancer survival is a "double-edged sword", Macmillan Cancer Support has said.
The charity's chief medical officer, Professor Jane Maher, said: "Put simply, the better we get at treating and curing cancer patients, the more people we will have living with the long-term effects of cancer and its treatment.
"Many of these problems can be managed using simple and inexpensive interventions by health professionals, while other more complex issues require specialist services.
"Too many cancer survivors are suffering in silence".
More top news
Patients are being left "belittled and bewildered" as medical staff try to deal with overstretched systems, the BMA will warn.
One tenant confronted the leader of Camden Council as tensions rise in evacuation of Chalcots estate.
The teenager, who cannot be named for legal reasons, is alleged to have attacked the girl in a Manchester park on Saturday evening.