Cancerunderactive thyroid Share Tweet Too little thyroid hormone. Symptoms include weight gain, constipation, dry skin, and sensitivity to the cold. Also called hypothyroidism.Source: NCI Dictionary of Cancer TermsSearch the Glossary of Medical Terms Previous: unconventional cancer treatments Next: undescended testicles NewsletterSign up for the QuackTrack.org newsletter below! Click to commentLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ QuackTrack on TwitterTweets by QuackTrack_org Trending Posts