The Basics Of Male Infertility

Men trying to start a family can feel overwhelmed with an infertility diagnosis. Infertility is an inability to conceive naturally after multiple months of trying, impacting up to 15% of American couples. Men are just as likely to be the cause of infertility among couples as women. With male infertility, men either have challenges with sperm production or quality that prevent the natural fertilization of eggs during intercourse. Understanding infertility from a male’s perspective, therefore, is essential to treatment and family planning. In many cases, male fertility is treatable. There are also assisted reproductive technologies (ART) available to achieve pregnancy. Getting clarity on the potential causes can help fertility teams devise the best possible treatment.

Sperm production causes

For a successful conception, men must create enough sperm to fertilize the egg. Sperm production challenges are some of the most common causes of infertility. Some men may have oligospermia or a low sperm count. This refers to a concentration of 15 million sperm per milliliter (mL) or lower in each semen sample. A more serious cause of infertility is azoospermia, or the complete absence of sperm in the ejaculate. There are many reasons for poor sperm production, which can be categorized as obstructive or non-obstructive. With obstructive oligospermia or azoospermia, sperm is produced but blocked from being released. Non-obstructive reasons can be linked to hormonal issues or testicular failure, where there may be no production at all.

Sperm quality causes

Even with enough sperm production, the quality of sperm determines the likelihood of fertilizing the egg in the fallopian tubes. Poor sperm quality is another common reason. Poor sperm motility refers to sperm unable to swim effectively through the female reproductive tract. Without proper motility, even a high sperm count cannot move effectively for fertilization. Another common trait is poor sperm morphology, referring to the shape of the sperm. Irregular shape or structure prevents proper penetration of the egg. Motility and morphology can be confirmed through semen analysis under a microscope. The fertility team will advise on the general measurements and treatment options.

Structural and anatomical issues

Even with healthy sperm production and quality, structural issues with the reproductive organs can lead to male infertility. Some men have varicocele, where enlarged veins in the scrotum prevent sperm from leaving the testes. Infections, injuries, or genetic traits can damage the ejaculatory ducts or sperm transport systems, leading to low sperm counts or poor sperm quality. In rare cases, undescended testicles from childbirth can lead to low sperm count, having a long-term impact on fertility if left untreated. Structural issues can only be detected via ultrasounds, scans, or testicular biopsy.

Hormone imbalances

Male reproductive health is governed by a series of hormones that help to produce high-quality sperm. The body depends on hormones called follicle-stimulating hormone (FSH) and luteinizing hormone (LH) to create sperm. Along with testosterone, adequate amounts of these hormones increase sperm health. Some cases of male infertility can be linked to low or imbalanced hormone levels. Hormone testing is typically done during the initial screening. These can identify the potential cause and help with treatment.

Contributing factors and lifestyle choices

Male infertility can be easily impacted by external factors and lifestyle habits. Excess smoking, alcohol consumption, and drug use have been shown to reduce sperm health, particularly sperm count and motility. Certain lifestyle diseases like obesity, type 2 diabetes, and metabolic syndrome have been linked to infertility. Poor dietary choices, like ultra-processed foods, create many of these diseases, thereby causing infertility. Men who are consistently exposed to certain environments and chemicals can experience oxidative stress or damage to reproductive organs. For instance, exposure to chemicals, pesticides, heavy metals, and plastics can impact fertility. Identifying these triggers goes a long way to improving fertility or boosting existing treatments.

What are your treatment options?

A male infertility diagnosis is only possible through a detailed evaluation by a fertility specialist. The fertility team will combine semen analysis with blood tests to find the potential reasons for infertility. Physical tests, ultrasounds, and other scans will search for structural issues impacting sperm health. Assessing lifestyle habits and exposure to toxins gives a more detailed picture of the patient’s fertility. This data is enough to create a custom plan unique to the patient. Treatment for male infertility often involves a combination of lifestyle changes and hormonal treatment. Surgery may be necessary for structural issues like varicocele. If these strategies are unable to improve pregnancy rates, ART can help. In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are forms that can help.

Take male infertility seriously

Male infertility affects millions of men, with many requiring treatment. There are many possible reasons for infertility, both internally and externally. Understanding the causes is critical for proper diagnosis and treatment. An infertility diagnosis can be challenging, but there are treatment options. A combination of hormone therapy, lifestyle treatment, surgery, and ART strategies can help. Some advanced options, like genetic testing, may be necessary. If pregnancy seems to be challenging, seek advice from a fertility specialist. Taking proactive steps and seeking help early can make all the difference.