Low testosterone (270) may need hormone replacement therapy, but only after confirming the cause with a doctor. The dose and form (injection, gel, or tablet) must be personalized and monitored regularly to avoid side effects like heart or liver issues.

A testosterone level of 3-4 ng/mL is low, but treatment depends on the cause, which needs full evaluation (hormones, thyroid, prolactin, lifestyle factors). Only a doctor can decide if testosterone replacement therapy is appropriate. Don't start any medicine without an endocrinologist's assessment.