Settled cases with general releases typically cannot be reopened for worsening conditions absent fraud or mutual mistake. Releases bar future claims arising from the same incident. Settlement negotiations should consider future deterioration possibilities. Medical expert opinions on prognosis affect valuations. Structured settlements may include contingency provisions. Specific exceptions might be carved out for unknown conditions. Insurance bad faith claims may arise from inadequate investigation before settlement. Discovery of concealed information might void releases. Strategic timing balances current needs against future uncertainty. Attorneys must counsel clients on finality implications. Documentation of known conditions at settlement prevents later disputes.