Mathew Knowles Mistook Cancer <br />Symptom for Working out Too Much Knowles is thankful that he <br />always wears white t-shirts after spotting specks of blood from <br />his nipple following a workout. Mathew Knowles, <br />via statement As the bleeding persisted for a few <br />days, Knowles consulted a doctor and a mammogram and biopsy <br />confirmed he had an early <br />stage of breast cancer. Knowles "never imagined" he'd be diagnosed with the disease, despite an extensive family history of sufferers. He is thankful to now <br />be cancer-free after having a mastectomy to remove <br />his right breast in July.
