Effects of Short Abstinence Period on Sperm Quality of Oligozoospermic Men

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20220419004

Enrollment

Registered

2022-04-19

Start date

2021-02-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Semen parameters and DNA fragmentation in oligozoospermic men between standard and short abstinence duration Short abstinence, semen parameters, DNA fragmentation, oligozoospermia, male infertility

Interventions

Semen parameters and sperm DNA fragmentation in standard versus short abstinence

Diagnostic

Oligozoospermia

Eligibility

Sex/Gender

Male

Age

20 Years to 45 Years

Inclusion criteria

Inclusion criteria: Age 20-45 years old Duration of infertility more than 1 year At least one previous semen analysis result with sperm concentration less than 15 million/ml Abstinence period within 2 to 7 days Semen volume at least 1.5 ml per ejaculation No history of previous testicular, penile surgery or vasectomy No history of cancer, radiation therapy or chemotherapy

Exclusion criteria

Exclusion criteria: Sperm concentration equal to or more than 15 million/ml when repeat at least 4-week interval from previous semen analysis Unable to ejaculate by masturbation Patient with azoospermia

Design outcomes

Primary

Measure	Time frame
Semen parameters short abstinence within 4 hours Semen analysis	—

Secondary

Measure	Time frame
DNA fragmentation short abstinence within 4 hours TUNEL assay	—

Countries

Thailand

Contacts

Public ContactNattaporn Poopaibool

Faculty of Medicine Ramathibodi Hospital, Mahidol University

npsound20@gmail.com66819286987

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026