The Claim

A right testicular volume of less than 15 mL is associated with a 2.79-fold increased odds of low testicular function in men undergoing fertility evaluation, with a sensitivity of 66.7% and specificity of 62.4% for identifying impaired sperm and hormone parameters.

Source: Right testicular volume is a dominant predictor of testicular function determined by sperm parameters and total testosterone

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
44score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Men with a right testicle smaller than 15 mL are more likely to have reduced sperm production and hormone levels during fertility testing, as measured by specific diagnostic thresholds.

See the scientific wording

A right testicular volume of less than 15 mL is associated with a 2.79-fold increased odds of low testicular function in men undergoing fertility evaluation, with a sensitivity of 66.7% and specificity of 62.4% for identifying impaired sperm and hormone parameters.

Why this might work

A smaller right testicle means there are fewer sperm-producing tubes and fewer hormone-producing cells inside, which directly lowers sperm count and testosterone levels.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Right testicular volume is a dominant predictor of testicular function determined by sperm parameters and total testosterone

    If a man’s right testicle is smaller than 15 mL, this study shows he’s nearly three times more likely to have low sperm count or low testosterone, and this size check correctly spots the problem about two-thirds of the time.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.