Facial hair — beard and moustache — is driven by testosterone and other androgens. When a man has absent or very sparse facial hair after puberty, it is a sign of androgen deficiency (hypogonadism) requiring medical evaluation.
Common causes include Klinefelter syndrome (XXY), Kallmann syndrome, hyperprolactinemia, and primary testicular failure. Associated symptoms often include low libido, reduced muscle, small testes, and infertility.
Dr. Manoj Choudhary evaluates the full hormonal axis (testosterone, LH, FSH, prolactin) and provides targeted testosterone replacement or gonadotropin therapy, helping men achieve normal masculinization and improved quality of life.
Common Causes
Low testosterone (hypogonadism)
Klinefelter Syndrome (XXY)
Kallmann Syndrome
Hyperprolactinemia
Pituitary dysfunction
Primary testicular failure
