Question: What is (are) Bladder cancer ?
Answer: Bladder cancer is a form of cancer that occurs due to abnormal and uncontrolled cell growth in the bladder. Signs and symptoms of the condition may include abdominal pain, blood in the urine, fatigue, painful urination, frequent urination, incontinence, and/or weightloss. Most cases of bladder cancer occur sporadically in people with no family history of the condition. Risk factors for the condition include smoking, exposure to certain chemicals, and having chronic bladder infections. Treatment varies based on the severity of the condition and may include surgery, radiation therapy, chemotherapy, and/or biological therapy.
Source: GARD

Question: What are the symptoms of Bladder cancer ?
Answer: What are the signs and symptoms of Bladder cancer? The Human Phenotype Ontology provides the following list of signs and symptoms for Bladder cancer. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Transitional cell carcinoma of the bladder - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Source: GARD