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Why Are My Red Blood Cells High On Testosterone?

Why Are My Red Blood Cells High On Testosterone?

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Timeline

Timestamp
Topic
00:00
A 50-year-old man using 400 mg of testosterone weekly plus Deca asks about elevated red blood cells, iron deficiency, and a mildly elevated AST level.
05:06
Dr. O’Connor explains that repeated blood donation may be driving the member’s iron depletion and introduces the ABCDs™ concept of iron depletion or deposition alongside androgen-induced erythrocytosis.
08:20
The discussion focuses on depleted ferritin and iron saturation from repeated phlebotomy while also explaining that elevated ferritin can have different causes, including iron overload and inflammation.
11:20
Dr. O’Connor discusses hemoglobin and hematocrit thresholds, prior clot or cardiovascular history, and why testosterone-related erythrocytosis requires individualized assessment rather than automatic phlebotomy.
13:10
The mildly elevated AST is examined separately, with Dr. O’Connor explaining that muscle activity, alcohol, medications, supplements, and other factors can raise AST without necessarily indicating serious liver disease.
18:00
Dr. O’Connor recommends backing down from 400 mg of testosterone and reassessing Deca because both can increase red blood cell production while complete iron studies and other possible causes of iron loss are investigated.

Video Summary

A 50-year-old man on testosterone asks about elevated red blood cells, iron deficiency, and mildly high AST. Dr. O’Connor explains that 400 mg of testosterone weekly plus Deca can strongly stimulate red blood cell production and describes this as androgen-induced erythrocytosis rather than polycythemia vera.

The discussion focuses on how repeated blood donation or phlebotomy can progressively deplete ferritin and iron stores even when hemoglobin and hematocrit remain elevated. Dr. O’Connor also stresses that iron deficiency should not automatically be blamed on phlebotomy because gastrointestinal blood loss and other causes may still require evaluation.

His mildly elevated AST is discussed separately because AST can rise from muscle activity, alcohol, medications, or other sources and is not specific to liver injury. Dr. O’Connor ultimately recommends reducing excessive androgen exposure, reviewing complete iron studies, reassessing liver enzymes, and using the ABCDs™ to evaluate cardiovascular, kidney, hematologic, and metabolic risk.

Drug Callouts

Drug
Description
Testosterone
The member reports using 400 mg of testosterone weekly, which Dr. O’Connor considers excessive exposure and an important contributor to androgen-induced erythrocytosis. He recommends reducing the dose while monitoring red blood cells, iron status, cardiovascular risk, kidney health, and the broader ABCDs™.
Deca-Durabolin (Nandrolone)
The member is using approximately 75 mg of Deca weekly for joint symptoms. Dr. O’Connor explains that nandrolone can further stimulate red blood cell production when combined with high-dose testosterone and should be considered when evaluating the member’s erythrocytosis and iron depletion.

Condition Callouts

Condition
Description
Androgen-Induced Erythrocytosis
Androgen-induced erythrocytosis is the central condition in this discussion and refers to increased red blood cell production from testosterone and other androgens. Dr. O’Connor distinguishes it from polycythemia vera and emphasizes evaluating testosterone dose, hematocrit, clot history, iron status, sleep apnea, and overall cardiovascular risk.
Iron Depletion
The member appears to have depleted iron stores despite elevated red blood cell measurements, which Dr. O’Connor suspects may result from repeated phlebotomy while using high-dose testosterone and Deca. He stresses that gastrointestinal blood loss and other causes still need consideration rather than assuming androgen management is the only explanation.

Key Takeaways

  • High-dose testosterone and nandrolone can strongly stimulate red blood cell production and contribute to androgen-induced erythrocytosis.
  • Repeated phlebotomy can lower ferritin and iron stores even when hemoglobin and hematocrit remain elevated.
  • Androgen-induced erythrocytosis should be distinguished from polycythemia vera because they are different hematologic conditions.
  • Iron deficiency in a man on testosterone should still prompt consideration of gastrointestinal blood loss and other causes beyond repeated blood donation.
  • A mildly elevated AST can come from muscle activity, alcohol, medications, supplements, or liver disease and should be interpreted in context.
  • Dr. O’Connor recommends reducing excessive androgen exposure and reviewing complete iron studies, cardiovascular risk, kidney health, and the broader ABCDs™.