What are the complications of hypothyroidism?

If left untreated, hypothyroidism can lead to serious complications such as goiter, infertility, heart disease, peripheral neuropathy, and myxedema (a rare but life-threatening condition). In children, it may cause developmental delays and growth problems, while in pregnant women it can increase the risk of miscarriage, preterm birth, and cognitive issues in the baby. Early diagnosis and proper treatment help prevent most complications.