Hi, Thanks for writing in. It is important to get tested in detail before telling any person has a cancer. His complete blood test, chest X ray and ultrasound scan abdomen are important investigations to be done. Please discuss with his doctor why they think that he might be having a cancer and what cancer is suspected. If your husband is having symptoms from one week then even if it is cancer, the disease is in early stage and treatment is possible. Cancer symptoms are similar to other diseases like TB and please take a second opinion if in doubt before starting treatment. Do not get worried and give your husband healthy diet and nutrition so that he make a quick recovery. Please do not worry.