The fact that you have to urinate immediately afterward generally means that you have to urinate frequently. Frequent urination is considered to be caused by drinking too much water, and it may also be caused by cystitis, urethritis, and other diseases, and for male patients, it is also considered to be caused by prostatitis. 1. Drinking too much water: If women drink a lot of water, the blood volume will increase will lead to increased glomerular filtration rate, which will lead to increased urination and increased urination, so the patient will appear to urinate immediately after the performance of urination. 2. Cystitis: cystitis is considered to be caused by bacterial infection, foreign body in the bladder, taking chemotherapy drugs and other factors, the patient will have frequent urination, urinary urgency and other symptoms, so the patient will be manifested as urination immediately after urination. 3. Urethritis: Urethritis can be caused by gonococcus, chlamydia trachomatis, mycoplasma and other pathogens, patients mainly manifested as frequent urination, urethral itching, and so on, so that the patient will appear after urinating immediately after the symptom of the desire to urinate again. 4. Prostatitis: Prostatitis is considered to be caused by bacterial infection, poor urinary tract, and holding urine. The patient will have frequent urination, urinary urgency, burning pain in the urethra and other symptoms, so the patient will appear after the urination immediately after the performance of the desire to urinate. The urge to urinate again immediately after urination is also considered to be caused by other diseases such as urethral stones, overactive bladder, bladder cancer and so on. It is recommended that patients need to consult a doctor in time when this condition occurs, and can take appropriate measures to treat it according to the doctor’s instructions.