Lower urinary tract symptoms (LUTS) are common among Australian men over the age of 45 years; most men with LUTS will have benign prostatic hyperplasia (BPH), overactive bladder (OAB), or both. The cause of LUTS should be diagnosed by assessing symptom severity and excluding of medical or pharmaceutical causes. All men with LUTS should undergo digital rectal examination; other diagnostic tools include urine and blood testing, voiding charts and imaging. Depending on disease severity, impact on quality of life, patient preference, presence of complications and fitness for surgery, BPH is managed with watchful waiting, pharmacotherapy (α-blockers or 5-α-reductase inhibitors), minimally invasive surgical therapies or surgery. OAB is initially treated with behavioural therapy; if this is ineffective, pharmacotherapy (usually antimuscarinics) can be used. Patients with LUTS with a provisional diagnosis other than BPH or OAB, or with complications or poor response to pharmacotherapy, should be referred to a urologist.