The phrase "imbalance problem" refers to a situation where things are not equal or fair. It means there is a lack of balance or fairness between different parts or aspects Full definition
I am doing ALL of these things suggested above but I'm still having hormonal imbalance problems. (maryvancenc.com)
PCOS is a hormone imbalance problem which can interfere with normal ovulation. (womenshealth.gov)
China could make concessions to improve intellectual protection but that won't solve the trade imbalance problem if that's something Trump wants. (fortune.com)