Semen Culture
A semen culture is an infection workup, not a fertility score. It grows bacteria from a semen sample to find out whether an infection is behind white blood cells, pain, or poor motility.
What this test measures
The lab plates a semen sample and incubates it for aerobic bacteria. If organisms grow, the report names them and usually lists which antibiotics they are sensitive to.
It is most often ordered after a semen analysis shows elevated round cells (leukocytospermia — over 1 million white blood cells per mL), or when there are symptoms such as pelvic pain, painful ejaculation, or a history of prostatitis.
Parameters reported
How to prepare
- Urinate first, then wash hands and genitals with soap and water before collecting — this reduces skin contamination that can cause false positives.
- Collect the whole sample directly into the sterile container. Do not touch the inside of the cup or lid.
- No lubricants, saliva, or condoms.
- Tell the lab if you are taking antibiotics — they can suppress growth and mask an infection.
- Bring your Hera lab order and a photo ID.
What happens at the lab
- Check in and hand over your Hera order. Semen cultures are usually processed by the lab's microbiology department, so collection may be at a general patient service center rather than a fertility clinic.
- You'll be given a sterile cup and a private room. Note the time of collection on the label.
- Hand the sample back promptly — cultures should be plated within an hour of collection.
Getting your results
Cultures take time to grow. Expect a preliminary result in 2–3 days and a final report with antibiotic sensitivities in about 3–5 days — confirm with the lab.
A positive culture names the organism and recommends antibiotics. Share the result with a doctor for treatment; Hera can help you find a urologist.
Because a semen culture is not a fertility analysis, Hera's AI fertility score does not apply to it. Pair it with a semen analysis if you also want count, motility, and morphology.
Common questions
What is the difference between a semen culture and a semen analysis?
A semen analysis measures sperm count, motility, morphology, and volume. A semen culture looks for bacteria. They answer different questions and are ordered separately, though they can be collected on the same visit at labs that offer both.
When is a semen culture ordered?
Usually when a semen analysis shows more than 1 million white blood cells per mL (leukocytospermia), or when there are symptoms of a genital-tract infection such as painful ejaculation, pelvic pain, or recurrent prostatitis.
Can an infection affect fertility?
Yes. Genital-tract infections can lower motility, raise DNA fragmentation, and in some cases cause blockages. Treating a confirmed infection and retesting after 3 months often improves semen parameters.
Do I need a doctor's order for a semen culture?
Yes. Hera provides the physician order and routes it to a lab that runs semen cultures. Availability is limited — check the locations listed on this page.
Where to get it
Lab networks with listed locations that run this test through Hera.
This test is available at a small number of specialty labs. Search the full directory to see current locations.