<prompt> True about carpal tunnel syndrome -a Occur in pregnancyb Affects medial 3 12 fingerc Associated with Hypothyroidismd Froment sign positivee Median nerve involvement is presentacebdecdeade  <response>: Carpal tunnel syndrome can occur in pregnancy and hypothyroidism.It affects lateral 3 and half fingers because median nerve supplied lateral 3 and half fingers.Froment sign is seen in ulnar nerve injury. 