Asthenospermia - Meaning, Causes & Treatment | Low or poor sperm motility

If you have ever sat across from a doctor and heard the words, “Your sperm count is fine, but your sperm do not move well,” you are not alone. That single sentence can trigger a mix of confusion, shame, anger, and helplessness. You may have always felt healthy, never missed a day at work, and now you are shouldering the blame for something you cannot even see or feel. For many men and couples, a diagnosis of asthenospermia – poor sperm motility – feels like a silent punch to the gut. But understanding what it means, why it happens, and what you can actually do about it can help you reclaim control over your fertility journey.

What Does Asthenospermia Really Mean?

Asthenospermia (also called asthenozoospermia) simply means that a significant percentage of your sperm are not swimming well enough to reach the egg. Normally, at least 50 percent of sperm should be moving, and a good portion of those should be moving forward in a straight line. When fewer than 32 percent of sperm move efficiently, fertility can be affected.

Sperm motility is not just about movement. Only sperm that swim forward quickly and steadily (think of them like little guided missiles) have a real shot at reaching and fertilizing the egg. Sperm that just wiggle in place or barely move will not get the job done.

There are different grades of sperm movement:

• Grade a (fast progressive): Sperm swim forward fast in straight lines.
• Grade b (slow progressive): Sperm swim forward, but slowly or in a less direct way.
• Grade c (non-progressive): Sperm move their tails but do not move forward.
• Grade d (immotile): Sperm do not move at all.

Only Grade a and b matter for natural conception. Grades c and d are considered poor.

Most men with poor sperm motility have no symptoms – the diagnosis often comes as a shock during routine fertility testing.

Why Do Some Men Have Low Sperm Motility?

This is the question everyone wants answered, but the honest truth is that in most cases, doctors cannot give a specific reason. The causes are often labeled as “idiopathic” – a medical way of saying, “We do not know.” Sometimes, there are obvious reasons, like:

• Past infections or fever affecting the testicles
• Varicocele (enlarged veins in the scrotum)
• Hormonal changes or imbalances
• Exposure to toxins, smoking, or certain drugs
• Genetic factors, including rare microdeletions on the Y-chromosome
• Testicular injury or surgery
• Undescended testicles as a child

But in most men, none of these apply. You might have a completely healthy lifestyle and still be affected. Unlike what society sometimes whispers, poor sperm motility does not reflect on your masculinity, sexual drive, or how often you have sex. The testicles have two separate jobs: making sperm and producing testosterone. It is entirely possible to have a strong sex drive and still have sperm that do not swim well.

Testing and Understanding Your Sperm Motility

The only way to know if your sperm motility is low is through a semen analysis, performed in a fertility laboratory. This test checks not just the number of sperm, but how many are moving, how they move, and if they are shaped normally. Sometimes, further testing like a sperm survival test is done, where sperm are kept in culture medium for 24 hours to see how many survive. The higher the number of motile sperm after this test, the better the chances of natural conception.

It is normal for results to vary between samples. Doctors often ask for two samples, taken a few weeks apart, to confirm the diagnosis. If the percentage of progressively motile sperm is less than 32 percent, or if very few sperm survive after 24 hours, asthenospermia is diagnosed.

What Treatments Actually Work for Asthenospermia?

If you have searched online or spoken to multiple doctors, you may have been offered a dizzying list of pills, injections, herbal remedies, diets, or even surgery. Here is what patients almost never get told upfront:

There is no proven medicine or supplement that reliably improves sperm motility in most men.

Despite this, many men are prescribed:

• Clomiphene, HMG, or HCG injections (fertility hormones)
• Testosterone (which can actually make things worse)
• Vitamins and antioxidants
• High-protein diets, homeopathy, Ayurveda, or other alternative therapies
• Varicocele surgery

If these treatments worked, there would not be hundreds of options. The fact is, most do not help, and precious time may be lost while you and your partner wait for a miracle that never comes. The risk is that your wife’s fertility declines with age, making the problem even harder to solve later on.

Varicocele surgery may help in some cases, but only about 30 percent of men see an improvement, and pregnancy rates after surgery alone are low. Surgery is rarely the magic bullet, and it is not possible to predict who will benefit.

The Real Path Forward: Assisted Reproductive Technology (ART)

Modern fertility science has moved past the “try everything and hope” approach. Today, decisions are based on numbers and evidence. Here is how we approach asthenospermia at Malpani Infertility Clinic:

• If the total motile sperm count is more than 5 million per ejaculate, IVF (In Vitro Fertilization) is usually the first step. This allows us to see if your sperm can fertilize eggs in the lab.
• If your sperm cannot fertilize eggs in IVF, or if the motile sperm count is less than 5 million, ICSI (Intracytoplasmic Sperm Injection) is the best option. In ICSI, a single healthy-looking sperm is injected directly into the egg. This bypasses the need for swimming altogether.
• IUI (Intrauterine Insemination), which is sometimes suggested, has poor results for men with low motility. Washing the sperm does not fix the underlying problem if the sperm are functionally weak.

ICSI has transformed the outlook for men with poor sperm motility. Even if only a handful of sperm are moving, we can often help you have your own biological child. At Malpani Infertility Clinic, we prefer to offer ICSI directly to men with asthenospermia to avoid the heartbreak of failed IVF cycles and wasted time.

Coping with the Emotional Toll and Moving Ahead

Having poor sperm motility does not mean you are less of a man or less worthy of fatherhood. The emotional impact is real, and often made worse by the silence and stigma that surround male infertility. Men may feel:

• Shock or disbelief (“But I feel fine!”)
• Guilt or shame, especially if they believe they are letting down their partner
• Anger at the situation or at doctors who cannot provide answers
• Loss of self-esteem or worries about masculinity
• Reluctance to talk about the issue – even with close friends or family

It is important to remember that the urge to become a father is natural, and your feelings are valid. Unfortunately, social support for men with infertility is often lacking. But you do not have to face this alone. Dr. Malpani and his team have helped thousands of men and couples through this journey by offering honest advice, advanced diagnostics, and treatment options that actually work.

If you are uncertain about your next step, or if you have been chasing ineffective treatments, you can send us your medical details for a free second opinion or reach our clinic on WhatsApp: +91 9867441589.

If you are struggling with poor sperm motility or have questions about your fertility, you do not have to figure it out alone. Speak with an expert fertility advisor at Malpani Infertility Clinic to get clear, honest guidance for your next steps—whether you are considering treatment, further testing, or just need answers.