Semen Analysis in London
Private, WHO-standard sperm testing with same-day results and a clear, plain-English report — from £179 at our Baker Street clinic. No GP referral needed.
What a Semen Analysis Measures
If you are trying to conceive — or simply want clarity — a semen analysis is the first and most important step. At Marylebone Diagnostic Centre we offer fast, discreet, accurate sperm testing in Central London, reviewed to our Marylebone High Standard using advanced CASA technology.
One test assesses every key marker of male fertility:
- Sperm count (concentration) — how many sperm per millilitre
- Motility — the percentage swimming forward
- Morphology — the shape and structure of the sperm
- Volume, pH & viscosity — overall sample quality
Why choose Marylebone Diagnostic Centre
- Results delivered within 24 hours
- Samples processed on-site — never shipped to an external lab
- Examined by trained biomedical scientists
- Discreet private rooms · no GP referral required
- Trusted by patients across London and the UK
Normal Ranges Explained
A quick reference for what a healthy result looks like. For a full walkthrough of what each number means, see our results-explainer guide.
| Parameter | Normal Range | What It Means |
|---|---|---|
| Semen Volume | ≥ 1.4 ml | The total amount of semen produced. Low volume may indicate issues with ejaculation or gland function. |
| Sperm Count (Concentration) | ≥ 16 million/ml | Commonly referred to as “sperm count.” Lower levels may reduce fertility potential. |
| Total Sperm Number | ≥ 39 million / sample | The total number of sperm in the entire ejaculate — a more complete assessment than concentration alone. |
| Total Motility | ≥ 42% | The percentage of sperm that are moving. Adequate movement is essential for sperm to reach the egg. |
| Progressive Motility | ≥ 30% | The proportion of sperm moving actively forward — the most important type for natural conception. |
| Morphology (Normal Forms) | ≥ 4% | The percentage of normally shaped sperm. Abnormal forms may affect the ability to fertilise an egg. |
Same-Day Semen Analysis in London
When it comes to fertility, time and peace of mind matter most. Unlike clinics that ship samples to external labs — risking delays and temperature changes that affect accuracy — we process your sample in our own Baker Street laboratory.
- Fast appointments: same-day or next-day availability
- On-site testing: processed in our dedicated London lab
- Rapid results: comprehensive report within 24 hours
Central London Clinic
Just a 5-minute walk from Baker Street Station, easily accessible from across London and the Home Counties.
73 Baker Street, London W1U 6RD
Private Semen Analysis Options
Choose the turnaround that fits your schedule. No referral needed.
Semen Analysis
- Comprehensive sperm health check
- Results within 24 hours
- Detailed laboratory report
- Private collection facility
Semen Analysis – Express
- Comprehensive sperm health check
- Priority results within 4 hours
- Immediate clinical turnaround
- Private collection facility
Who Should Consider a Sperm Test?
A semen analysis gives you a clinical baseline so you can make informed decisions about your fertility. Consider booking if any of these apply:
- Trying to conceive for 6–12 months
- Preparing for IVF, ICSI or sperm freezing
- Want a baseline fertility check
- Previous miscarriage or failed IVF
- Low libido or hormonal concerns
- History of testicular injury, surgery or STIs
Semen Analysis vs DNA Fragmentation
Standard Semen Analysis
Assesses the external health and physical quality of the sperm — the recommended first step.
- Sperm count
- Motility (movement)
- Morphology (shape)
- Volume & pH
DNA Fragmentation Testing
Assesses the internal genetic integrity of the sperm — which a standard test cannot detect. You can have normal results but still face high DNA damage, affecting embryo development, IVF success and miscarriage risk.
Learn about DNA fragmentation & hormone testing →Many patients combine both tests for a complete fertility picture.
Around 1 in 7 couples struggle to conceive — a male factor is involved in nearly half. Simple. Private. Fast.
How to prepare for accurate results
- Abstinence: avoid ejaculation for 2–5 days before the test
- Moderation: reduce alcohol and smoking
- Temperature: avoid saunas, hot tubs and tight clothing
- Tell us if you've had a fever in the last 3 months
A full sperm regeneration cycle takes ~74 days, so lifestyle changes show best results over ~3 months.
What happens at your appointment
Arrival
Attend our clinic at 73 Baker Street at your scheduled time.
Private collection
A dedicated, private room is provided for your sample.
Processing & results
Our lab processes your sample on-site; results within 24 hours.
Performed by a Qualified Clinical Team
Every sample is analysed by trained biomedical scientists and reviewed under our clinical governance led by Dr Lauren. CQC-accredited and aligned with the Marylebone High Standard, with optional teleconsultations to discuss your results.
Complete Your Picture
Frequently Asked Questions
Book Your Semen Analysis Today
Take control of your fertility with fast, accurate testing in Central London. Results within 24 hours.
Book now
