Andropause in Singapore: Late-Onset Low Testosterone

Signs and Symptoms of Andropause

Andropause symptoms are non-specific — they overlap with depression, sleep disorders, thyroid problems and the general drag of an unhealthy lifestyle. That's why a blood test matters: feeling flat is not enough on its own to confirm the diagnosis. Most men notice a combination of the following.

Sexual symptoms

• Reduced libido or sex drive
• Erectile difficulties or weaker erections
• Fewer spontaneous morning erections
• Reduced volume of ejaculate

Physical symptoms

• Persistent fatigue and low energy
• Loss of muscle mass and strength, particularly in the legs and arms
• Increased body fat, especially around the waist
• Reduced exercise tolerance and longer recovery
• Hot flushes or sweating
• Reduced body and facial hair

Psychological and cognitive symptoms

• Low mood, irritability or a sense of flatness
• Reduced motivation or drive
• Poor concentration and memory
• Disturbed sleep, including waking unrefreshed

Three or more of these symptoms together — particularly if they have come on gradually over months or years — are worth a conversation with a doctor. The next step is usually a morning testosterone test to see whether levels match the symptoms.

What Causes Andropause?

Andropause is rarely caused by ageing alone. In most men, several factors stack up together — and that is also why several factors can be unwound.

Age-related decline

Testosterone production from the testes peaks in the late teens and early 20s, then falls gradually from around age 30 — at roughly 1% per year. By age 60, average levels are noticeably lower than they were at 30, but not every man drops into the symptomatic range.

Lifestyle and metabolic factors

• Obesity — fat tissue converts testosterone into oestrogen, which is one of the strongest reversible drivers of low testosterone
• Type 2 diabetes and metabolic syndrome — closely linked to low testosterone in middle-aged men
• Poor sleep and untreated sleep apnoea — testosterone is largely produced during sleep
• Heavy alcohol intake — directly suppresses testosterone production
• Chronic stress — sustained high cortisol lowers testosterone
• Sedentary lifestyle — particularly with little resistance training

Medical conditions and medications

• Pituitary or hypothalamic disorders that affect the signalling from brain to testes
• Long-term opioid painkillers, corticosteroids, or certain anti-androgen medications
• Past testicular injury, infection, surgery or chemotherapy
• Other chronic illnesses such as kidney disease, liver disease or HIV

Working out which of these is driving low testosterone in any given man is what shapes the treatment plan. For two men with identical blood results, the right next step can be very different.

How is Andropause Treated?

Treatment is not a single prescription — it is a sequence, with the simplest and most reversible options tried first.

1. Lifestyle changes (always first)

For most men, the largest gains come from steps that don't involve a prescription pad. Lifestyle changes alone can lift testosterone by a meaningful amount over 3–6 months.

• Weight loss — losing 5–10% of body weight, particularly visceral fat around the waist, is one of the most effective testosterone boosts in overweight men
• Resistance training — 2–3 sessions a week of compound lifts (squats, deadlifts, presses, rows) raises testosterone more reliably than steady-state cardio alone
• Sleep — aiming for 7–8 hours of quality sleep, and treating sleep apnoea where present
• Alcohol moderation — heavy or daily drinking suppresses testosterone
• Reviewing medications — long-term opioids, certain antidepressants and corticosteroids can lower testosterone; alternatives may be available
• Managing chronic conditions — better diabetes, hypertension and cholesterol control often improves testosterone alongside

2. Treating reversible causes

If a specific cause is found — untreated sleep apnoea, a pituitary issue, a medication side effect — treating that root cause often restores testosterone without the need for hormone therapy.

3. Testosterone replacement therapy (TRT)

TRT is considered when symptoms persist and testosterone remains low after lifestyle changes, or when there is an irreversible cause such as primary testicular failure. It is given as an intramuscular injection or a topical gel, and is monitored with regular blood tests for haematocrit, PSA and clinical response.

TRT is not started for men with normal testosterone, for performance enhancement, or for men currently or planning to conceive (TRT suppresses sperm production, and recovery after stopping can take 6–12 months and isn't guaranteed). For a full picture of who TRT is for, how it is given and what to expect, see the dedicated testosterone replacement therapy page.

4. Treating overlapping conditions

Many men with andropause also have erectile dysfunction, weight gain or low mood. Where these are present, treating them in parallel — rather than waiting for testosterone alone to fix everything — usually produces a better outcome.