To intend to benefit but end up suffering loss; to make matters worse in an attempt to improve them.
小明本想通过节食减肥，但方法不当，结果欲益反损，身体反而更虚弱了。
Xiao Ming originally wanted to lose weight through dieting, but his improper methods led to an outcome of seeking gain but incurring loss, making his body even weaker.
Next Idiom