What Is Complicated Grief and How Is It Treated?

The short answer: Complicated grief — formally called Prolonged Grief Disorder (PGD) — is a condition where normal grief does not gradually diminish over time but remains intensely disabling beyond 12 months. It affects roughly 7–10% of bereaved people and responds best to a specialized therapy called Complicated Grief Treatment (CGT).

What Is Complicated Grief?

Complicated grief — formally called Prolonged Grief Disorder (PGD) in the DSM-5-TR (added in 2022) — is a condition in which acute grief does not follow the expected trajectory of gradual adaptation over time. Instead, grief remains intensely disabling and does not diminish despite the passage of time. An estimated 7–10% of bereaved people develop PGD, making it distinct from the much broader experience of normal grief.

How Complicated Grief Differs from Normal Grief

Normal grief is painful and disruptive but follows a gradual arc of adaptation. Most bereaved people experience acute symptoms that, while devastating at first, gradually allow them to re-engage with life, relationships, and meaning — not "getting over" the loss but integrating it. In complicated grief, this process stalls:

• Yearning and longing for the deceased remain intensely disabling
• The person cannot accept that the death was real or permanent
• Bitterness or anger about the loss remains constant
• The person avoids reminders of the deceased, or conversely, cannot stop seeking them
• Daily functioning — work, relationships, self-care — is significantly impaired
• Symptoms persist well beyond 12 months at a level that does not improve

Risk Factors for Prolonged Grief Disorder

Not everyone who experiences a difficult loss develops PGD. Risk factors include:

• Sudden, traumatic, or unexpected death (accident, suicide, homicide)
• Loss of a child at any age
• Loss of a spouse or primary attachment figure
• History of prior loss, trauma, or mental health conditions
• Very close or enmeshed relationship with the deceased
• Ambivalent or conflicted relationship with the deceased (unresolved issues)
• Limited social support after the loss
• Stigmatized loss (suicide, overdose, AIDS) — disenfranchised grief can complicate the mourning process

How Complicated Grief Is Diagnosed

DSM-5-TR criteria for Prolonged Grief Disorder require:

1. The death of someone close
2. At least one of: intense yearning/longing for the deceased, or preoccupation with thoughts/memories of the deceased
3. At least three of: identity disruption, marked sense of disbelief about the death, avoidance of reminders, intense emotional pain related to the loss, difficulty reintegrating in relationships/activities, emotional numbness, feeling life is meaningless without the deceased, or intense loneliness
4. Symptoms persisting at least 12 months (6 months for children)
5. Significant impairment in functioning

Evidence-Based Treatment for Complicated Grief

The gold standard treatment is Complicated Grief Treatment (CGT), developed by Katherine Shear, MD at Columbia University. CGT is a structured 16-session therapy that combines:

• Revisiting the story of the death to process trauma and avoidance
• Imagery exercises to process the relationship with the deceased
• Aspiration exercises to reconnect with future goals and identity
• Work to rebuild ongoing connections with the deceased (rather than "letting go")

Research shows CGT is significantly more effective than standard grief counseling for people with PGD. Grief-focused CBT is another validated option. Antidepressants may help with co-occurring depression but do not directly treat PGD.

Finding Treatment

Seek a licensed therapist or psychologist specifically trained in Prolonged Grief Disorder or Complicated Grief Treatment. The Columbia Center for Complicated Grief maintains a therapist directory. Hospice bereavement coordinators and Renidy's network can also provide referrals to grief specialists.

Frequently Asked Questions

How long does grief last before it becomes complicated?

There is no fixed timeline, but when intense grief symptoms persist significantly beyond 12 months and interfere substantially with daily functioning, clinicians may evaluate for Prolonged Grief Disorder. The DSM-5-TR requires symptoms persisting at least 12 months after the loss.

What is the difference between complicated grief and depression?

Complicated grief (Prolonged Grief Disorder) centers specifically on the loss — longing for the deceased, difficulty accepting the death, bitterness about the loss. Depression is more pervasive — low mood across all areas of life, not specifically tied to grief. They can coexist, and accurate diagnosis helps direct the right treatment.

What treatments are most effective for complicated grief?

Complicated Grief Treatment (CGT), developed at Columbia University, is the gold standard — a structured 16-session therapy. Grief-focused CBT and, in some cases, medication for co-occurring depression are also used. General supportive counseling alone is less effective for PGD.

Can a death doula help with complicated grief?

Death doulas primarily support people before and during death, not with diagnosing or treating complicated grief. However, they can provide grief support to families after loss and refer to licensed grief therapists when complicated grief symptoms emerge.

Who is most at risk for complicated grief?

Risk factors include: sudden or traumatic death, loss of a child, loss of a spouse or primary attachment, history of prior trauma or mental health conditions, limited social support, and a pre-existing very close or ambivalent relationship with the deceased.

Renidy connects grieving families with compassionate end-of-life professionals. Find support near you.