Growths inside the bladder may be stones, benign tumors, malignant tumors and so on. 1. Bladder stones: the most common symptoms of bladder stones are frequent urination, hematuria (usually in advanced stage) and difficulty in urination or pain on the pubic arch, and the symptoms are most serious at the end of urination; bladder stones can be clearly diagnosed by ultrasound, X-ray, CT and other examinations; bladder stones can be treated by open, laparoscopic, endoscopic (transurethral or percutaneous) surgery or extracorporeal shock wave lithotripsy. 2. Benign tumors: patients often consult with painless hematuria, benign tumors will not metastasize, but there is a possibility of recurrence, so after surgical resection, it is often recommended to follow up regularly for examination. 3. Malignant tumor: mainly manifested as painless hematuria, which may be accompanied by bladder irritation symptoms such as urinary frequency, urinary urgency and urinary pain. Bladder cancer can occur in any part of the bladder, and it is more common in the bladder triangle and both walls of the bladder; larger tumors or occurring in the neck of the bladder can cause obstruction of urinary flow, difficulty in urination, and even urinary retention, etc.; it should be treated by surgery as early as possible. If there is something growing inside the bladder, you should consult a doctor in time for further examination and treatment after clear diagnosis under the guidance of a physician.