RN
There are two questions hiding inside this one, and almost every argument about it goes wrong by treating them as the same question.
The first is anatomical: what is the actual range, and where in it do you sit. The second is psychological: why does the answer to the first one carry so much weight. They are genuinely separate problems, they have separate solutions, and the reason the debate never resolves is that people keep answering the second question with data aimed at the first.
The anatomical question is worse-measured than you think
Numbers get quoted on this subject with a confidence the underlying data does not support, and it is worth understanding why before you weigh any of them.
Self-reported measurements run high. That is not a moral failing, it is a known and unremarkable feature of self-report on any trait people feel judged on, and it means informal surveys, forum polls and magazine questionnaires all sit above whatever the real distribution is. Clinician-measured samples are more reliable, but they are drawn from whoever turned up — often men attending a urology clinic, which is not a neutral sample either. Then there is the question of what is being measured: flaccid, stretched flaccid, or erect are three different figures, and the relationship between them varies a lot between individuals. A statistic that does not say which one it used tells you nothing.
The one thing all of this converges on is the shape of the distribution rather than its midpoint. It is tight. Most men cluster within a narrow band, the genuine outliers at both ends are rare, and the visible gap between "average" and "worried about it" is much smaller than the worry implies. If you have compared yourself to what you have seen in porn, you have compared yourself against deliberate casting from the far tail of that distribution, filmed with lenses and angles chosen to exaggerate it further.
The other question is the one actually bothering you
If the anatomical answer settled anything, telling a man he is within the normal range would end his concern. It reliably does not — which is the strongest evidence available that the concern was never really about the measurement.
What is usually underneath it is something more ordinary: a fear of being found inadequate, attached to a body part because that is where the culture put it. That fear does real damage. It shows up as avoiding sex, as monitoring yourself during it instead of being present, as reading a partner's neutral expression as disappointment. Those are all things that make sex worse, and they are all downstream of the anxiety rather than the anatomy.
Worth naming clearly: persistent, distressing preoccupation with genital size in someone whose measurements are unremarkable is a recognised pattern, and it responds to psychological treatment rather than to reassurance or to surgery. If it is occupying your thoughts daily, that is a reason to talk to a doctor, and the conversation is a routine one for them.
What the anatomy suggests about the sex itself
The most sensitive tissue involved in most partnered sex is not deep, and for a great many women penetration alone is not the most reliable route to orgasm regardless of who is doing the penetrating. That is not a consolation prize; it is the actual mechanism, and it is why hands, mouths, toys, angle, pace and communication all move the needle more than dimensions do. If this part is the interest, the A–Z guide to the female orgasm covers it properly.
It also cuts the other way, and honest writing on this should say so: some people do have a preference, and larger is not universally welcome either. Discomfort and pain at depth are common complaints. Preference exists in both directions and neither direction is a verdict on you.
On the products and procedures
The market here is enormous, largely unregulated, and mostly selling to the anxiety rather than to the anatomy.
Pills and topical creams have no established mechanism for changing size. Manual techniques circulated online — jelqing being the usual one — carry a real risk of bruising, scarring and vascular injury, and no medical body endorses them. Traction devices are the one non-surgical category with any clinical use at all, and that use is narrow, slow and supervised, not a general enhancement route.
Surgery is a serious undertaking with a poor satisfaction record when the motivation is cosmetic rather than functional. Professional urological guidance consistently discourages it for men whose anatomy is within the normal range, and the complications — loss of sensation, scarring, erectile difficulty, an outcome that looks worse than the starting point — are not rare enough to treat as fine print. If you are seriously considering it, the appointment worth booking first is with a urologist who will tell you not to, and possibly with a therapist, in that order.
The short version
The measurement is almost certainly fine. The distress about the measurement is the thing worth treating, and it is treatable. And the sex you are anxious about is mostly determined by things you can change — attention, communication, what else you do — rather than by the one thing you cannot.