PSA Test vs Prostate Ultrasound Scan: Different Tests, One Goal
If you're a man in your 40s, 50s or older in Lagos, you've probably heard friends talk about "checking the prostate." Some say they did a PSA test; others say they did a scan. Many assume these are the same thing. They are not, and knowing the difference could protect your health.
Why Your Prostate Deserves Attention
The prostate is a small gland below the bladder that tends to grow as men age. This growth can cause problems such as frequent urination at night, a weak urine stream, or the feeling that your bladder never fully empties. More seriously, research shows that Black men, including Nigerian men, face a higher risk of prostate cancer and are often diagnosed late, when treatment is harder. Early checks make a real difference.
What Is a PSA Test?
PSA stands for Prostate-Specific Antigen, a protein made by the prostate. The PSA test is a simple blood test that measures how much of it is in your blood.
A raised PSA level is a warning sign that something may be happening in the prostate. However, a high PSA does not automatically mean cancer. It can also rise because of an enlarged prostate, infection or inflammation, recent ejaculation, or vigorous activity like long cycling. That's why PSA is a starting point, not a final answer.
What Is a Prostate Ultrasound Scan?
A prostate ultrasound uses sound waves to create images of the prostate. It is painless and involves no radiation. It is usually done in one of two ways: through the lower abdomen (the most common, done with a full bladder), or transrectally (TRUS) for a closer, more detailed view, often when a doctor needs more information.
The scan shows your doctor the size and shape of your prostate, whether it is enlarged, and how much urine stays in your bladder after you pass water. This helps explain urinary symptoms and guides treatment.
Why You Need Both
Think of it this way: the PSA test tells you whether something may be wrong; the ultrasound shows what the prostate actually looks like.
Each test fills a gap the other leaves. A man can have an enlarged prostate on the scan with a normal PSA, or a raised PSA with a prostate that looks normal in size. Doctors also combine the two to calculate "PSA density" (your PSA level relative to prostate size), which helps them judge whether a high PSA is more likely due to simple enlargement or needs further investigation, such as an MRI or biopsy.
Neither test alone diagnoses prostate cancer. Together, they give your doctor a much clearer picture.
When Should You Get Checked?
Speak with your doctor about prostate screening if you are 40 or older, especially with a family history of prostate cancer; if you wake up often at night to urinate; if your urine flow is weak or starts and stops; or if you notice blood in your urine or semen.
Take Charge of Your Prostate Health
Many men in Lagos wait until symptoms become serious before seeking help. Don't be one of them. A simple blood test and a painless scan could catch problems early, when they are easiest to treat.
Book your PSA test and prostate ultrasound scan today and give yourself peace of mind.