
Medical Director & Consultant Urologist
MBBS (Singapore), MRCS (Edin) FRCS-Urol (Glas), FAMS (Urol)

Many men are surprised to learn that sexual health and fertility do not always go hand in hand. It is possible to experience erectile dysfunction without fertility problems, just as some men with low sperm count may not notice any issues with sexual performance.
However, because certain health conditions can affect both areas, understanding the possible connection may help men make more informed decisions about their health.
Erectile dysfunction and low sperm count are separate conditions that affect different aspects of men's health. Erectile dysfunction affects sexual performance, while low sperm count affects fertility and the ability to conceive naturally.
Erectile dysfunction, also known as ED, refers to difficulty achieving or maintaining an erection firm enough for sexual activity. It may occur occasionally or become a persistent problem over time.
Common signs may include:
Low sperm count refers to having fewer sperm than normal in the semen and it is one of the more common causes of male subfertility that may reduce the chances of natural conception. Some men with low sperm count may not experience any noticeable symptoms until fertility issues arise.
Possible signs may include:
Erectile dysfunction does not directly cause low sperm count and low sperm count does not necessarily lead to erectile dysfunction. However, both conditions may sometimes share underlying causes related to hormones, lifestyle habits, general health or emotional wellbeing.
Although erectile dysfunction and low sperm count may overlap in some cases, medical evaluation is often needed to determine whether the conditions are connected and what treatment options may be appropriate.
Diagnosing erectile dysfunction and low sperm count usually involves identifying possible underlying causes rather than focusing only on the symptoms themselves. Because sexual function and fertility can be influenced by hormones, lifestyle habits, medical conditions and emotional well-being, a comprehensive assessment is often recommended.
A doctor may begin by discussing your medical history, symptoms, medications, lifestyle habits and any fertility concerns. This is typically followed by a physical examination to assess overall reproductive and sexual health.
Depending on the symptoms involved, further investigations may include hormone testing, semen analysis or imaging studies. Hormone tests can help identify imbalances affecting testosterone or reproductive function, while semen analysis evaluates sperm count, movement and overall sperm health.
In some cases, additional tests may be recommended to assess blood flow, nerve function or underlying medical conditions that could contribute to erectile difficulties or fertility problems. Identifying the underlying cause is important because treatment approaches often differ depending on the diagnosis.
Treatment for erectile dysfunction and low sperm count varies depending on the individual's symptoms, fertility goals, and overall health. In some cases, improving general well-being and addressing contributing factors may help support both sexual function and sperm health.

Occasional erectile difficulties or fertility concerns may not always indicate a serious problem. However, persistent symptoms should not be ignored, especially if they are affecting confidence, relationships, or plans for conception.
You should consider seeking medical advice if:
Erectile dysfunction and low sperm count are separate conditions, but they may sometimes be linked through shared health, hormonal or lifestyle factors. While occasional symptoms may not always indicate a serious problem, persistent concerns affecting sexual function or fertility should not be ignored. Early medical evaluation may help identify underlying causes and support more effective treatment and reproductive outcomes.
At Urology Practice, the clinical team provides specialised care for men's health concerns, including erectile dysfunction, male subfertility and other andrological conditions affecting sexual and reproductive health. A Korea fellowship-trained consultant urologist and former elected EXCO member of the Society of Men's Health Singapore, Dr Jonathan Teo combines subspecialty training in Andrology with experience gained across Singapore, Korea, the United Kingdom and the United States. If erectile dysfunction or fertility concerns are affecting your confidence or quality of life, consider consulting our specialist for a detailed assessment and tailored treatment approach.
Fertility testing may be recommended if there are concerns about conception, low sperm count, or male subfertility alongside erectile difficulties. Evaluation is usually based on individual symptoms and reproductive goals.
Occasional erectile difficulties can happen due to stress, fatigue, or temporary lifestyle factors. Persistent or recurring symptoms, however, may require medical evaluation.
Some supplements may support reproductive health in certain individuals, but effectiveness can vary depending on the underlying cause of fertility concerns. Medical advice is recommended before starting supplements.

Qualifications & Credentials:
Dr Jonathan Teo is a fellowship-trained consultant urologist in Singapore with a subspecialty focus in men's health and andrology. Dr Teo has extensive experience evaluating and treating erectile dysfunction, low sperm count and other conditions that may affect sexual and reproductive health. He was formerly the Director of Andrology at Singapore General Hospital and an elected EXCO member of the Society of Men's Health Singapore.
More About Dr Teo