How Do You Know If You Have a Low Sperm Count? Signs & Symptoms
You cannot see or feel a low sperm count — which is exactly why one simple test matters. Written and medically reviewed by Dr Shah Dupesh, MBBS, DCE, FASM — Consultant Andrologist & Sexologist, Chennai. · Last reviewed: 15 July 2026. The honest answer, straight away The signs of a low sperm count are almost always invisible — it usually causes no symptoms you can see or feel. It does not change your sex drive, your erections, how much you ejaculate, or how your semen looks — almost every man with a low count feels completely normal. The only way to truly know is a semen analysis, a simple, low-cost lab test. A handful of clues (trouble conceiving after a year, testicular changes, or low-testosterone signs) can hint that a check is due — but they are hints, not proof. I am Dr Shah Dupesh, a practising andrologist in Chennai, and “how do I know if my sperm count is low?” is one of the questions men ask me most quietly — usually after searching for it late at night. So let me speak to you directly, because the honest answer is reassuring and probably not what you are bracing for: a low sperm count is almost always invisible. You cannot judge it by how sex feels, how firm your erections are, or how your semen looks. This page walks you through the few clues that are genuinely worth noticing, the many things that tell you nothing, what the actual numbers mean, and the one test that gives a clear answer. In a nutshell What every man wondering about his count should know The essentials I give men in my clinic — what a low sperm count does and does not feel like, and the calm next step. 1 It is usually silent Most men with a low count have no symptoms at all — normal erections, normal desire, a normal-looking ejaculate. You cannot feel it. 2 Sex and semen fool you How sex feels and how your semen looks say almost nothing about the sperm inside it. A watery or a thick ejaculate can each carry a perfectly normal count. 3 A few clues do matter Trouble conceiving after a year, testicular pain or a lump, very low semen volume, or low sex drive with reduced body hair are worth acting on. 4 Know the real number Below 16 million sperm per millilitre is “low” (WHO 2021). Many popular sites still quote the older 15 million figure. 5 Only a test tells you A semen analysis is the only way to actually know — quick, inexpensive, and usually repeated once to be sure. 6 Often improvable A low count is frequently not permanent. Lifestyle changes over a 2–3 month sperm cycle, and treating the cause, often lift the numbers. Can you feel or tell if your sperm count is low? (Almost never) This is the single most important thing to take away, because it saves a lot of needless worry: a low sperm count has no reliable outward signs. Your fertility lives in the microscopic number and quality of sperm cells, and you simply cannot see, feel or sense that from the outside. In my clinic I regularly meet men with a strong physique, a healthy libido and firm erections whose semen analysis shows a very low count — and quieter men, worried sick, whose counts are perfect. How you look and how you perform in bed do not track your sperm count. This is not just my clinical impression. It is exactly why the major guidelines — the AUA/ASRM male-infertility guideline, and clinics like Mayo and Cleveland — build the entire male work-up around the semen analysis: a man can have completely normal sexual function and still have an abnormal count, and the only way to assess sperm is to test them (Schlegel et al., AUA/ASRM, 2021). So if you have been quietly studying yourself for “symptoms,” you are looking in the wrong place — finding no “symptoms” proves nothing either way. First, what actually counts as a “low” sperm count? Before we talk signs, it helps to know the number, because “low” has a precise meaning. The World Health Organization’s 6th-edition manual (2021) sets the lower reference limit for sperm concentration at 16 million sperm per millilitre. Below that is called oligozoospermia — a low sperm count. You will still see many popular health pages quoting 15 million; that is the older 2010 figure, now superseded. These numbers are not a pass/fail line for having a baby — they are the 5th-percentile values measured in recently-fertile men — but they are the yardstick every lab uses. The WHO 2021 lower reference limits — the yardstick your semen-analysis report is read against. WHO semen reference limits — the current (2021) numbers vs the older ones you may still see What the lab measures WHO 2021 (6th ed.) lower limit Older 2010 figure Sperm concentration 16 million / mL 15 million / mL Total sperm per ejaculate 39 million 39 million Total motility (moving sperm) 42% 40% Progressive motility 30% 32% Vitality (live sperm) 54% 58% Normal shape (morphology) 4% 4% Semen volume 1.4 mL 1.5 mL A few related terms are worth knowing, because a report can read as more than just “low”: severe oligozoospermia means fewer than 5 million/mL; cryptozoospermia means almost none — sperm are found only after the lab spins the sample down; and azoospermia means no sperm at all in the ejaculate. If your report throws up any of these, our plain-English guide to reading a semen analysis explains exactly what each number means, and azoospermia has its own, often treatable, causes. Low count, low motility, or low morphology? They are not the same thing Here is a distinction that trips up almost everyone who reads their own report. “Sperm count” is only one of three things a semen analysis measures, and the three can fail independently: Count (concentration) — how many sperm
Smoking and Sperm : How does smoking affect sperm quality?
Men’s Health Blogs Smoking and Sperm How does smoking affect sperm quality? Does smoking affect my chances of becoming a father? Hi, This is Dr Shah Dupesh, Consultant Andrologist, to answer the aforementioned question in a single line.. Yes it will!. And you better stop smoking at the earliest….Better still stop it right away after reading this post. Cigarette smoke contains over 43 known scientifically documented carcinogens that can impair your sperms motility, sperm concentration and also disrupt your sperms DNA. Smoking has been associated with numerous other cancers too. What is very interesting is that there are three types of smoke….. Dr. Shah Dupesh Consultant Andrologist & Sexologist Ready to improve your Reproductive Health? Discuss your concerns in a private setting and get personalized guidance tailored to your needs. Book a Call Book a Call They are namely, first hand smoke, second hand smoke and last of all third hand smoke. A. First hand smoke is what the smoker inhales. B. Second hand smoke is what the people around him inhale (while he happily exhales). C. Third hand smoke is when you inhale the residual smoke in an area where people smoke e.g. commonly in a hotel room. What is important is that all three forms of smoke can affect a man’s sperm Third hand smoke contains nitrosamines that are mutagenic and can disrupt sperm DNA thus impairing a man’s future fertility. Interestingly, third hand smoke can also impair your chances of conception post costly fertility therapies. My advice… Stop Smoking When You Are Planning For A Pregnancy My father smoked, my grandfather smoked, they all fathered tens of children. Then why can’t I do the same? It is important to understand that sometimes cigarette smoke and its effects may be trans-generational…….. to put it in simple terms the effects of smoke and its dirty products may not directly manifest in the smoker but may affect his yet unborn child and prospective children by causing mutations at the gamete cellular level. Although your ancestors smoked and fathered children at one point in time, this gives no guarantee that you would spontaneously father a child while smoking. Time to achieve a pregnancy is definitely longer in men who smoke compared to men who do not smoke. Importantly, learn to always look at the bigger picture…… smoking increases not just the risk of infertility, it affects your heart, lungs, almost all body systems and increases your risk of undergoing an adverse cardiovascular event like stroke/myocardial infarction, obstructive lung disease and among numerous other cancers. I still feel you should quit smoking!. It is not easy, but trust me it is worth it. Be persistent!…… ……in quitting even the thought of smoking Subscribe to our Newsletter My wife smokes. Will it affect her chance of getting pregnant? It definitely will screw up her chance of conception big time!!. Smoking in women will affect her chance to conceive spontaneously and can have terrible effects on the unborn fetus. Hope you enjoyed reading this short post. If you are looking for a Sexology clinic in chennai get in touch with us below TAGS: ABNORMAL SPERM, BAD SPERM SHAPE, LOW SPERM COUNT, MALE FERTILITY, MALE INFERTILITY, MALE INFERTILITY CAUSES, SMOKING, SPERM DNA DAMAGE Related Blogs Recent Blogs Having more doubts? Consult with our doctor Consult with Dr. Shah Leave Your Comment Cancel Reply Logged in as Dr Shah Dupesh. Log out? Δ