Postpartum depression (PPD) is a type of major depressive disorder (MDD) that some people experience after having a baby. It’s a formal mental health condition that affects the way you feel, behave, and relate to the world.

When depression symptoms appear for the first time 6 weeks or more after childbirth, it is commonly referred to as delayed or late-onset postpartum depression.

Postpartum depression symptoms can appear anytime within the first year after childbirth, even though they often start within the first 6 weeks. However, it’s also possible that symptoms develop gradually and become more evident or intense after the first year and up to three years later.

Some experts have proposed that if depressive symptoms start more than a year after childbirth, the condition shouldn’t be diagnosed as PPD, but as MDD. Others have theorized that symptoms showing up after the first year could still be related to the postpartum process and connected to important milestones like discontinuing nursing or resuming the menstrual cycle.

It’s important to treat symptoms of depression as they appear because, without help, they can become more challenging to manage over time.

Treatment of delayed postpartum depression is usually tailored to individual needs. The first line of treatment for most types of major depression is psychotherapy. A therapist can help you develop actionable strategies for coping with PPD.

If your symptoms become severe and significantly affect the way you see yourself, your baby, and the world, a healthcare professional may recommend adding medications to the treatment plan.

Choosing a specific medication depends on whether you’re still nursing, your overall health, and the specific symptoms you experience. A healthcare professional will consider your and your baby’s safety when making these decisions.

Treatment for postpartum depression is effective, even for late symptom onset. You’re not alone, and relief is possible.