Positives

• Testosterone pellets may be relevant when a patient has documented low testosterone or post-illness HPG-axis changes contributing to low energy, low libido, muscle loss, mood changes, or poor recovery (PMC).
• For those patients, a longer-acting pellet can reduce the burden of frequent injections or daily gels (Drugs.com).

Negatives

• Testosterone replacement is not a general Long COVID or ME/CFS treatment and should not be used just because fatigue is present (Mayo Clinic Connect).
• If hormones are not actually low, treatment may add side effects without addressing PEM, brain fog, dysautonomia, MCAS, or immune symptoms (PMC).

Hurdles & Side Effects

• Pellets require an office procedure and can cause soreness, bruising, infection risk, or dose levels that are hard to adjust quickly (Mayo Clinic Connect).
• Monitoring is important for blood counts, prostate-related risk where applicable, acne, hair loss, mood changes, fertility effects, and cardiovascular risk (PMC).