100% educational platform · Does not create a doctor–patient relationship, consultation or treatment
Doctor PN · Male fertility

Half the problem is male.
Almost nobody looks at it in time.

The semen analysis is cheap, fast and changes the direction of the whole process. Here's what it measures, what each parameter means, and how the male evaluation is sequenced — through the clinical framework of the Abraham Project.

Male fertility
Male fertility
Clinical education
Educational only
The blind spot

The man gets evaluated
last.

In a large share of couples struggling to conceive there is a male factor involved, alone or alongside a female one. Even so, the man is usually studied months — sometimes years — after she is. Starting there saves time, money and wear.

Step 1

Semen analysis

With 2 to 5 days of abstinence and a confirmatory second sample. One abnormal result defines nothing on its own: biological variation between samples is real and expected.

Step 2

Exam and hormones

Physical examination — including looking for varicocele — plus a hormone panel: total and free testosterone, FSH, LH, estradiol and prolactin. Many abnormalities have an identifiable cause.

Step 3

Second-line testing

Sperm DNA fragmentation (DFI), oxidative stress markers, ultrasound and, where indicated, genetic testing. This is where you decide whether to correct, treat or refer.

How to read it

Five parameters
and what they actually say.

Reference values describe populations, not people. Being below them doesn't mean infertility, and being above them guarantees nothing. What matters is the whole pattern.

Concentration

How many there are

Sperm per millilitre and total count. A low count points toward hormonal, obstructive, testicular or lifestyle causes — each with a different approach.

Motility

How they move

Progressive, non-progressive and immotile. It's the parameter most sensitive to heat, to sample processing time and to the sperm cell's mitochondrial function.

Morphology

How they look

Percentage of normal forms under strict criteria. It carries the most variation between labs, so it is always interpreted alongside the rest — never alone.

DFI

DNA integrity

Sperm DNA fragmentation index. A semen analysis can look normal and still carry a high DFI; it is associated with implantation failure and recurrent early loss.

Oxidative stress

The environment

Imbalance between reactive oxygen species and antioxidant capacity. It's the mechanism linking varicocele, smoking, obesity, heat and pollution to sperm damage.

Context

What surrounds the result

Sleep, weight, alcohol, tobacco, scrotal temperature, medications, anabolic steroids and duration of exposure. Without that history, any lab report is incomplete.

A semen analysis is not a verdict.
It's the starting point.

— Paulo Navarrete
Abraham Project
The Abraham Project™

A clinical framework
for male fertility.

The Abraham Project is my educational line on male fertility. It began as a review of the evidence on supplementation and became a full study system: a manual, a stratification algorithm and a decision framework. It is educational material to help you understand your case — not a consultation, a diagnosis or a prescription.

  • Abraham Clinical Bible™ — the clinical manual that grades the available evidence and defines the approach for each profile.
  • Abraham Clinical Algorithm™ — the decision tree that turns the semen analysis, the DFI and the patient's context into a concrete route.
  • Abraham Fertility Score™ — a proprietary stratification score placing each case in Tier 1, 2 or 3 by complexity.
  • Abraham 90 — the 90-day working window, aligned with the spermatogenesis cycle.
Abraham profiles

Five profiles.
Five different routes.

Not every case looks alike, and treating them identically is why so many generic protocols fail. The system classifies by which axis dominates the problem.

Profile 01

Motility

The sperm cell's mitochondrial and energy axis. The profile most sensitive to external factors, and usually the first to respond.

Profile 02

Concentration

The production axis. Requires a full hormone panel, a search for varicocele and ruling out obstructive causes.

Profile 03

Morphology

The maturation axis. Always read alongside other parameters; in isolation it says far less than people assume.

Profile 04

Elevated DFI

The DNA integrity axis. It can coexist with a normal-looking semen analysis and changes the reproductive outlook entirely.

Profile 05

Oxidative stress

The environmental axis. The common denominator behind much of the rest, and the one most driven by habits and exposures.

Stratification

Tier 1 · 2 · 3

From the simple, correctable case to the one needing referral to assisted reproduction. What changes isn't just the plan: it's the time horizon and the expectation.

Product line · In development

Supplementation designed
inside the system.

Four formulations built for a specific profile, not to "improve fertility" in general. They are in development and not yet available for sale.

Base

Fertility Core

The system's base formulation, designed as a common starting point across the program's profiles.

In development
Motility profile

Motility+ / MitoBoost

Aimed at the sperm cell's mitochondrial and energy axis.

In development
DFI profile

DNA Protect

Aimed at cases with elevated sperm DNA fragmentation.

In development
Oxidative profile

OxBalance

Aimed at the balance between reactive oxygen species and antioxidant capacity.

In development
ABOUT THE SUPPLEMENTS · These formulations are in development and are not available for sale. Dietary supplements are not intended to diagnose, treat, cure or prevent any disease, and these statements have not been evaluated by the FDA. Nothing on this page is a promise of a reproductive outcome.
Frequently asked

What people ask most.

My semen analysis came back abnormal. Am I infertile?+

Not necessarily. A single abnormal result does not establish a diagnosis: variation between samples from the same man is high and depends on abstinence, a recent fever, transport time and the lab itself. The usual step is to repeat it a few weeks later before concluding anything, and always to read it alongside the physical exam and hormone panel — with your treating physician.

What is the DFI and why isn't it on my report?+

The sperm DNA fragmentation index measures damage to the genetic material the sperm carries. It isn't part of the standard semen analysis; it's ordered separately. It becomes especially relevant with recurrent early pregnancy loss, implantation failure, or normal results without conception — because a sample can look fine under the microscope and still carry a high DFI.

Why 90 days?+

Because that's roughly one full spermatogenesis cycle plus epididymal transit. Any change introduced today — habits, correcting an identified cause, supplementation — takes about three months to show up in a sample. Re-testing before that window is usually premature.

Do supplements alone fix the problem?+

No. The evidence on supplementation for male fertility is heterogeneous and, at best, supports the rest: correcting what's correctable, managing weight, alcohol, tobacco and scrotal heat, and treating identified causes such as varicocele where appropriate. Anyone promising you a result from a capsule is selling you something.

Does this program replace a fertility specialist?+

No. The Abraham Project is a framework for evaluating and teaching male fertility. A portion of cases — the most complex ones — require referral to assisted reproduction, and the stratification system exists precisely to identify those early rather than delay them.

MEDICAL DISCLAIMER · This page is educational material. It does not constitute diagnosis, prescription or therapeutic indication, and it does not create a doctor–patient relationship. Fertility evaluation is individual and belongs to a professional licensed in your jurisdiction. The frameworks, algorithms and scores described here are proprietary clinical and educational stratification tools, not independently validated diagnostic tests.

Start with the test
almost nobody orders.

If you've been trying for more than a year, the semen analysis isn't the last step. It's the first.