How should we prepare for a semen analysis?
We need a semen analysis next week. How many days of abstinence are ideal, and can a fever last month affect the report?
Short answer: Most labs request 2 to 5 days of abstinence. Recent fever or high heat can temporarily worsen results, so tell the lab and consider a repeat test if numbers are unexpected.
Answer #1
Collection basics
Use a sterile lab container. Avoid saliva or ordinary lubricants. If home collection is allowed, keep the sample warm and deliver it quickly. Missing the first part of the ejaculate falsely lowers the count.
Dr. Karan Malhotra, MS Urology, Andrology. Answered 2026-03-29
Answer #2
Interpreting one abnormal report
Spermatogenesis takes about 2 to 3 months, so a fever six weeks ago can still affect today's result. Doctors usually confirm abnormalities with a second test before major decisions unless the first result is already severely abnormal and fits the clinical picture.
Dr. Vikram Shah, MD Andrology & Reproductive Medicine. Answered 2026-03-29
Call your clinic or go to the hospital the same day if you have
- Painful ejaculation with fever
- Blood in semen with urinary symptoms
- Sudden scrotal swelling
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Answers are general education for patients in India, not a diagnosis or personal medical advice. Best IVF Centers is a fertility matching service, not a clinic or hospital. Always follow your treating doctor's instructions. In an emergency, go to the nearest hospital.