I have undesended testicles i guess it caused my gynecomastia and micro penis problems. how can i fix these issues?

Need attention: You possibly have what is called hypogonadism. Please talk to your pcp, and see an endocrinologist.

Testicular function: For testicles to function properly they normally descend into the scrotum for a cooler environment. Undescended testicles (cryptorchidism) may impede function and development and is a cancer risk if not treated.

Seek Consultation.: Best so with your primary care physician and endocrinologist. Cooperation between several “specialties” will be necessary to diagnose and treat your concerns. Best wishes.