# The Actual State of Sexual Dysfunction in Newlywed Men Starting to Try for a Baby in Japan

**Authors:** Ayumu Taniguchi, Akimasa Kure, Yuki Nagashima, Ippei Hiramatsu, Masato Shirai, Kazuhiro Kobayashi, Akira Tsujimura

PMC · DOI: 10.1002/rmb2.70023 · Reproductive Medicine and Biology · 2026-01-28

## TL;DR

This study found that nearly 20% of newlywed or pre-married men in Japan experience sexual dysfunction, with age, obesity, and depression as key risk factors.

## Contribution

The study provides current data on sexual dysfunction in Japanese men seeking fertility treatment, identifying specific risk factors.

## Key findings

- 19.3% of 719 men had sexual dysfunction, including erectile and ejaculatory issues.
- Age, BMI, and depression scores were significant risk factors for sexual dysfunction.
- Differences in blood markers like albumin and triglycerides were observed between groups.

## Abstract

We aimed to evaluate the sexual function in newlywed men or men just before marriage to better understand the current situation of the male sexual and reproductive function.

This study included 719 men visiting our hospital or clinic for fertility screening. Patient characteristics including age, sexual status, semen parameters, several symptoms, and blood analysis results were assessed. We compared several factors between patients with sexual dysfunction (SD group) and those with normal sexual function (SN group), and performed univariate and multivariate analyses to identify independent risk factors for sexual dysfunction.

Of 719 men, 139 (19.3%) were identified as having sexual dysfunction, including erectile dysfunction [ED], n = 88 [12.2%]; ejaculatory dysfunction, n = 66 [9.1%]; and decreased libido, n = 35 [4.9%]. Significant differences between the SD and SN groups were observed in age, albumin, liver enzymes, triglycerides, blood sugar, and semen volume. In a multivariate analysis, only age, body mass index, and the Beck Depression Inventory score for depression remained significant risk factors for sexual dysfunction.

It was considered that men who are older, obese, or exhibit depressive symptoms are likely to experience sexual dysfunction before the initiation of fertility treatment.

We found that 139 (19.3%) in 719 newlywed men or men just before marriage were identified as having sexual dysfunction at our bridal examination. It was considered that men who are older, obese, or exhibit depressive symptoms are likely to experience sexual dysfunction before the initiation of fertility treatment.

## Linked entities

- **Diseases:** depression (MONDO:0002050)

## Full-text entities

- **Genes:** ALB (albumin) [NCBI Gene 213] {aka FDAHT, HSA, PRO0883, PRO0903, PRO1341}
- **Diseases:** decreased libido (MESH:D009123), Depression (MESH:D003866), ejaculatory dysfunction (MESH:D006331), erectile dysfunction (MESH:D007172), obese (MESH:D009765), Sexual Dysfunction (MESH:D012735)
- **Chemicals:** triglycerides (MESH:D014280), blood sugar (MESH:D001786)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

33 references — full list in the complete paper: https://tomesphere.com/paper/PMC12848782/full.md

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Source: https://tomesphere.com/paper/PMC12848782