Types of Depression? There is not one general type of depression. The disorder is separated into 4 main types of depression
1. major depressive disorder (MDD) A feeling of sadness and loss of interest that is persistent
2. seasonal affective disorder (SAD) A depression related to changes in the seasons, typically fall to winter.
3. persistent depressive disorder (PDD) A chronic long-term form of depression
4. postpartum depression – A depression that occurs after a mother gives birth