Concealed loss or damage refers to cargo damage or shortages that are not immediately visible at the time of delivery but are discovered later during unpacking or inspection. Because the damage is hidden, it may not be noted on delivery receipts, complicating claims. Shippers and consignees must report concealed damage promptly, typically within a specified timeframe defined by carrier terms or insurance policies. Proper documentation, photographs, and packaging retention are critical when filing claims. Timely notification preserves rights and increases the likelihood of compensation.