It is difficult to give a concrete diagnosis without evaluation.
Various
endocrineEndocrine glands
Pancreatic islet cell tumor causes can explain this, specifically inadequate gonadal steroid secretion - Klienfelter's Syndrome among the causes, along with
hypopituitarismGrowth hormone deficiency
Hypopituitarism, hypothyroidism, or hyperprolactinemia.
If there is evidence of a
testicularTesticular biopsy
Testicular cancer
Testicular torsion
Testicular torsion repair
Testicular torsion repair - series mass on physical exam, this should be followed up with an ultrasound. A head MRI can be considered if an intracranial process is suspected.
Blood testing a should include a complete blood count, erythrocyte sedimentation rate, liver function tests, random measurements of serum LH and FSH, together with testosterone.
You can consider an evaluate with an endocrinologist.
These options can be discussed with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_b