Divergence can be applying as a signal for not only the conversion of a prospective trend but also the stability of the trend.
While the price is a higher low(HL), but the oscillator appearances lower low(LL), it is named a Hidden Bullish Divergence
Hidden Bullish Divergence
This phenomenon showing the increasing trend.
If the oscillator makes a low point and the price makes a lower low(LL) point, it can be expressed as a hidden Bullish divergence.
Hidden Bearish diversion
If the price turns to Lower High(LH), but an oscillator appears that Higher high(HH), which is usually found in a downward movement.
If you come after a movement, you have to identify these hidden divergences.
It should be renowned that regular diversion signals appear the trend conversion, and hidden diversion appears that the maintenance of the movement.
That is, Regular Divergence is the signal of Movement Conversion while Hidden Divergence is the signal of Movement Maintenance.