If GH is low, IGF-1 testing will provide evidence.
If T is low and one is catabolic, collagen is been lost and collagen is needed for healing. Low T can lead to thin frail skin that has lost elasticity from collagen loss.
Hypothyroidism creates skin problems.
In both cases, hair growth and nails can be affected too. Brittle nails?
Hypogonadism and hypothyroidism share many symptoms.
If you have a doctor manipulating your thyroid, do not do thyroid labs right after that.