The prostate sits about two inches inside the anus, toward the front of the body (the belly button side). It’s a walnut-sized gland you can feel through the rectal wall, and locating it is straightforward once you understand the basic anatomy and technique.
Where the Prostate Sits
The prostate is positioned just below the bladder and directly in front of the rectum. Because only a thin wall of tissue separates the rectum from the prostate, the gland can be felt by inserting a finger into the anus and pressing toward the front of the body. It sits roughly two inches in, or about two finger knuckles deep.
A healthy prostate weighs around 25 grams and is roughly the size of a walnut. It wraps around the urethra (the tube that carries urine out of the body), which is why prostate swelling often causes urinary symptoms. The gland grows with age, so in older men it may feel noticeably larger.
How to Locate It by Touch
Whether you’re doing a self-check or simply want to understand what happens during a medical exam, the process involves the same basic steps.
Start by trimming your fingernails short and washing your hands thoroughly. Use a generous amount of water-based lubricant on your index finger and around the anus. Relax your body as much as possible, since tension in the pelvic floor muscles makes insertion uncomfortable and the gland harder to feel.
Gently insert your index finger into the rectum, pad side facing up (toward your navel). Slide in about two inches. You’ll feel a rounded, slightly firm bump pressing against the front wall of the rectum. That’s the prostate. It has a smooth surface with a slight groove running down the middle, dividing it into two symmetrical lobes. The texture is often compared to the tip of your nose: firm but with some give when you press lightly.
Best Positions
Doctors typically use one of three positions for a rectal exam, and the same options work for self-examination:
- Standing and leaning forward: Stand with your toes pointed slightly inward and lean over a table or countertop. This is the most common position used in clinical exams and gives good access.
- Lying on your side: Lie on your right side with your right leg straight and your left knee pulled up toward your chest. This relaxes the pelvic muscles and can be more comfortable for a self-check.
- Knee-to-chest: Lie face down on a flat surface with your knees pulled up under you. This opens the angle and makes the prostate easier to reach.
For self-examination, lying on your side is usually the most practical because it frees up one hand while keeping your body relaxed.
What a Healthy Prostate Feels Like
A normal prostate feels smooth, symmetrical, and slightly rubbery. Both lobes should feel roughly the same size, and the surface should be even without any hard spots. When you press gently, it should give a little, similar to pressing the fleshy part of your thumb.
You may also notice a mild urge to urinate when pressing on the prostate. This is normal and happens because the gland surrounds the urethra. The sensation is not painful in a healthy gland, though it can feel unusual if you’ve never done this before.
Signs That Something May Be Off
During a prostate check, there are a few things worth noting. Hard lumps or firm bumps on the surface of the gland are called nodules. These don’t always indicate cancer (they can result from infections, calcifications, or benign growths), but they do need medical evaluation. Asymmetry, where one lobe feels noticeably larger or different in texture than the other, is also worth flagging.
A prostate that feels boggy, swollen, or tender to the touch may indicate inflammation or infection (prostatitis). If pressing on the gland causes sharp pain, stop. Vigorous massage or pressure on an actively infected prostate can push bacteria into the bloodstream. If you have a fever, painful urination, or pelvic pain, skip any self-check and see a doctor instead.
What a Self-Check Can and Cannot Tell You
Feeling your own prostate gives you a general sense of its size, symmetry, and surface texture. It’s useful for noticing obvious changes over time, like significant swelling. But it has real limitations. Your finger can only reach the back surface of the gland. Abnormalities on the sides, top, or interior won’t be detectable by touch alone.
Prostate cancer, in particular, often produces no palpable changes in its early stages. A PSA blood test, which measures a protein produced by prostate tissue, catches many cases that a physical exam would miss entirely. A digital rectal exam performed by a trained clinician is also more reliable than a self-check, because doctors develop a calibrated sense of what normal tissue feels like across thousands of exams. Self-checks are a reasonable supplement, not a replacement, for professional screening.
Men over 50, or over 40 with a family history of prostate cancer, benefit most from having a conversation with a doctor about when and how often to screen. The combination of a blood test and a professional exam gives a far more complete picture than either one alone.