What is the semen ph range in humans?

The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. The pH of distilled water is 7 and is considered neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic.

For human sperm, WebMD lists a slightly wider normal pH range of 7.1-8.01 than the normal WHO criteria of 7.2-7.82.

A pH value outside of the normal range is harmful to sperm2, because too much acid or base in its environment is disadvantageous to the sperm cells’ ability to swim and fertilise an egg.

  • A lower (acidic) pH value below 7.2 may indicate that one or both seminal vesicles are blocked.
  • A higher (basic) pH value above 8 may indicate an infection.

Research suggests the WHO “normal” range is too low

A 1993 study pH was measured in ejaculates from 207 men in couples undergoing infertility examination. The pH was measured within 30 and 60 min after ejaculation with both pH paper and pH meter. The mean pH values were consistently well above 8.0 regardless of analysis method and time after ejaculation. Since semen analysis is part of clinical assessment of male infertility and includes pH measurement, the findings suggest that the range of normal values needs to be revised further4.

How to increase male fertility

There are a number of things a man can do to improve his fertility. These include lifestyle choices such as the elimination of fast food, nicotine and alcohol, regular exercise, restful sleep and the reduction of stress.

In addition, scientific studies have show that an increase in sperm count can be achieved by taking the following food supplements:

  • amino acids such as Arginine and Carnitine
  • antioxidants such as Glutathione and and co-emzyme Q10
  • trace metals such as zinc and selenium
  • vitamins such as A, B9 (folic acid), C, D and E
  • extracts such as pine bark extracts (Pycgnogenol)

These amino acids, vitamins and trace elements are naturally occurring nutrients and no side effects are to be expected. On the contrary, increasing the supply of such micronutrients causes significant health benefits such as a stabilisation of the immune system, a positive effect on cardiovascular circulation and skin and hair health.

There is therefore no medical reason not to implement a micronutrient rich diet for a half or a full year.

Male fertility supplements combine many of the nutrients to create one powerful fertility-enhancing pill.

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VIDEO: Learn How To Read a Semen Analysis (video 2 of our video series)


  1. “Essig, Maria G.; Edited by Susan Van Houten and Tracy Landauer, Reviewed by Martin Gabica and Avery L. Seifert (2007-02-20). “Semen Analysis”. Healthwise. WebMD. Retrieved 2007-08-05.”
  2. “Understanding Semen Analysis”. Stonybrook, State University of New York. 1999. Retrieved 2007-08-05″
  3. “Understanding Semen Analysis”. Stonybrook, State University of New York. 1999. Retrieved 2007-08-05″
  4. “http://www.ncbi.nlm.nih.gov/pubmed/9675619”

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