Donating Blood: Red Cross List of Exclusions

Nelson Vergel

Founder, ExcelMale.com
Also, I suggest that everyone reads this long list of exclusions:

Blood donor eligibility criteria by the Red Cross

Acupuncture

Age

Allergy, Stuffy Nose, Itchy Eyes, Dry Cough

Antibiotics

Aspirin

Asthma

Birth Control

Bleeding Condition

Blood Pressure, High

Blood Pressure, Low

Blood Transfusion

Cancer

Chronic Illnesses

Cold, Flu

Creutzfeldt-Jakob Disease (CJD)

Creutzfeldt-Jakob Disease, Variant (vCJD); "Mad Cow Disease"

Dental Procedures and Oral Surgery

Diabetes

Donation Intervals

Donor Deferral for Men Who Have Had Sex With Men (MSM)

Ebola Virus

Heart Disease

Heart Murmur, Heart Valve Disorder

Hemochromatosis (Hereditary)

Hemoglobin, Hematocrit, Blood Count

Hepatitis, Jaundice

Hepatitis Exposure

HIV, AIDS

Hormone Replacement Therapy (HRT)

Hypertension, High Blood Pressure

Immunization, Vaccination

Infections

Insulin

Intravenous Drug Use

Malaria

Medications

Organ/Tissue Transplants

Piercing (ears, body), Electrolysis

Pregnancy, Nursing

Sexually Transmitted Disease

Sickle Cell

Skin Disease, Rash, Acne

Surgery

Syphilis/Gonorrhea

Tattoo

Travel Outside of U.S., Immigration

Tuberculosis

Venereal Diseases

Weight/Height

Zika Virus
 
Last edited:
I had a blood transfusion in 1982 due to a serious motorcycle accident
This means I cannot give blood
I cannot pay back in kind, for having my life saved
 

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TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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