"Xīn téng" literally means "heart hurts," but it’s not used for physical pain. Instead, it expresses a tender, affectionate ache — the warm, slightly painful feeling of deep care or concern for someone (or even something) you love. The character 心 (xīn) means "heart," representing emotion and inner feeling, while 疼 (téng) means "to hurt" or "to ache," but here it’s softened by context to suggest emotional tenderness rather than suffering.

This word is commonly used toward vulnerable beings — children, elderly parents, pets, or even injured animals — conveying protective warmth and empathetic worry. It often appears in spoken Chinese and informal writing, carrying intimacy and sincerity. Unlike neutral terms like 'worry' or 'concern,' xīn téng implies emotional investment and vulnerability: you feel their hardship as if it were your own, yet with gentleness and love.