Urine retention may be acute or chronic and occurs when something prevents the flow of urine from the bladder to the urethra and out of the body. In acute urine retention, but the person is unable to pass the urine, resulting in significant pain. Chronic urine retention is where a person is able to pass small quantities of urine with difficulty and the bladder never completely empties. It is usually painless. Symptoms of acute urine retention include lower abdominal pain, a sensation of fullness in the lower abdomen, and a painful urge and inability to pass urine. Chronic urine retention symptoms include swelling of the abdomen, a frequent need to urinate, difficulty in starting the urine flow, a weak urine flow, and dribbling at the end of urinating and between urinating. Treatment options include temporary or permanent catheterization, medication, treating the underlying cause, herbal therapies, and homoeopathy.