Is subclinical hypothyroidism safe to treat?

Yes: With moderate doses of thyroid hormone, subclinical hypothyroidism can be easily corrected without significant risk.

Yes: Hypothyroidism can be primary - caused by a weak thyroid gland or secondary to other hormonal problems, like a pituitary problem. Or your thyroid can become dysfunctional secondary to high insulin, estrogen or cortisol. If you have functional hypothyroidism, this problem can go undetected by routine screening tests. More extensive testing can often reveal abonormalities. This is very common.

Yes it is safe: Yes it is safe to treat as it ia only treated with small doses of Synthroid (thyroxine) to bring the TSH to normal level