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NCT Number: NCT07405879

The Impact of Having a Tattoo on Fertility Treatment Outcome

Tattoos are increasingly common among women of reproductive age, yet their potential systemic inflammatory effects and impact on fertility treatment outcomes are unknown. This prospective observational cohort study aims to evaluate whether the presence, size, duration, and ink characteristics of tattoos are associated with pregnancy outcomes following embryo transfer in women undergoing in vitro fertilization (IVF).

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Key information

Conditions

Infertility Assisted Reproductive Technology Outcomes Genital Diseases Urogenital Diseases

Age range

21 year–40 year

Sex eligibility

Female

Study type

Observational

Primary location

About this study

This is a single-center, prospective observational cohort study conducted at the McGill University Health Centre Reproductive Centre. Women undergoing IVF with planned fresh or frozen blastocyst embryo transfer will be enrolled and categorized based on tattoo presence and characteristics. Tattoo information will be collected using a standardized questionnaire and direct measurement. Participants will be followed for pregnancy and obstetric outcomes through medical chart review. The primary outcome is ongoing pregnancy rate following embryo transfer. Secondary outcomes include clinical pregnancy, biochemical pregnancy, miscarriage, ectopic pregnancy, and live birth.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Women aged 21-40 years Undergoing IVF with planned fresh or frozen blastocyst embryo transfer Availability of good-quality blastocyst embryos Willingness to provide informed consent

Exclusion criteria

Significant untreated uterine abnormalities

≥3 prior failed embryo transfers Hydrosalpinx in situ BMI >40 kg/m² Age >41 years at embryo creation Submucosal fibroids in situ Use of medications affecting implantation (e.g., chronic steroids, metformin)

Treatment and study plan

Primary outcomes

  1. Ongoing Pregnancy Rate

    Time frame: 12 weeks gestation

    Presence of fetal heartbeat on ultrasound at ≥12 weeks

Secondary outcomes

  1. Clinical pregnancy rate

    Time frame: 6-8 weeks of gestation

    presence of a gestational sac

  2. Biochemical pregnancy

    Time frame: 4-5 weeks of gestation

    positive BHCG test

  3. Miscarriage rate

    Time frame: before the 20th week of pregnancy

    The spontaneous loss of a fetus

  4. Ectopic pregnancy rate

    Time frame: upto 10 weeks of gestation

    the frequency at which a fertilized egg implants outside the uterine cavity

  5. Live birth rate

    Time frame: over 23 weeks of gestation

    the frequency of successful deliveries resulting in at least one live-born infant

Study contacts

Contact information is provided by the study sponsor or research team.

maya shavit, MD

CONTACT

[email protected]

+14385963979

michael haim dahan, MD

CONTACT

[email protected]

+14389907707

Sponsors and collaborators

Lead sponsor

McGill University Health Centre/Research Institute of the McGill University Health Centre

Other

Registry information

Official study title

The Impact of Having a Tattoo on Fertility Treatment Outcome: A Prospective Randomized Controlled Trial

Important dates

Study start
2026
Primary completion
2031
Study completion
2031
First posted
Feb 12, 2026
Registry last updated
Feb 12, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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