How OCD and Depression Are Connected: Symptoms and Treatment
TL;DR
Depression and OCD co-occur more often than most people realize. Nearly 35% of people with OCD also have major depressive disorder, and the two conditions can fuel each other in complicated ways. Whether depression is driving the OCD, the OCD is driving the depression, or both are primary concerns, the treatment approach needs to account for that relationship. ERP remains the gold standard for OCD treatment, but when depressive symptoms like hopelessness, low motivation, or rumination are severe, those may need to be tackled first. The good news is that with a skilled therapist, both conditions can be addressed, and recovery from one often supports progress in the other.
When OCD and Depression Collide
Living with OCD can feel like a constant battle. When depression enters the picture, the tools you once had to fight that battle feel out of your grasp. Or maybe the battle wears you down so much that depression starts to rear its ugly head. Or depression becomes so severe that it overshadows the OCD, and it’s hard to even get yourself to care enough about the concerns you had before. OCD and depression can be connected in a few different ways, and the approach for treatment can differ depending on what it looks like for each individual person.
The Stats
It is very common for depression and OCD to co-occur (i.e., be diagnosed in the same person at the same time). Major depressive disorder (MDD; the diagnosis that we think of when we think of depression) is the most common mental health disorder that co-occurs with OCD. A 2021 meta-analysis (i.e., a fancy research study whose purpose is to look at data from a bunch of other studies all looking at the same topic) showed that:
About 48% of people with OCD have a co-occurring mood disorder of some kind, and 35% have co-occurring MDD.
In folks with OCD, having a co-occurring depressive disorder predicted increased severity of suicidal ideation.
Increased depressive symptoms are associated with higher OCD severity.
Untreated depression can limit the effectiveness of OCD treatment.
Primary vs Secondary Diagnosis
In the world of mental health diagnosis, some diagnoses can be considered secondary to another diagnosis (the primary diagnosis). This is when one diagnosis is the primary driver of another diagnosis. For OCD and depression, MDD is often secondary to OCD, but not always. As described in the introductory paragraph, the two disorders can be connected in multiple ways. Sometimes, both OCD and MDD are primary diagnoses. OCD is not considered to be a diagnosis secondary to depression, however. There are a few things a therapist will consider when determining whether depression is secondary to OCD:
Time of onset: Which symptoms started first? If depression symptoms started well before any OCD symptoms appeared, then depression is probably not secondary to OCD
Your experience: A lot of the time, clients will be able to tell me if they feel like their depression is due to their OCD symptoms.
Whether treatment of OCD symptoms leads to improved depression symptoms: If this is the case, depression is usually secondary.
What does this mean for treatment? A lot! When MDD is secondary to OCD, the depression symptoms improve when the OCD symptoms improve, and often, the depression does not need to be specifically addressed. This is because the depression is caused by the OCD symptoms. However, if OCD and MDD are both primary diagnoses, then both will usually need to be addressed.
Can Depression Interfere With OCD Treatment?
Yes, unfortunately. Exposure and response prevention (ERP) is still the gold standard of treatment for OCD, and it is beneficial even in those who also have severe depression. However, research tells us that depression can increase the time on treatment for OCD and can limit the level of improvement that people experience in treatment for OCD.
There are many possible reasons that depression symptoms may interfere with OCD treatment. In my experience as an OCD therapist, depression symptoms of hopelessness and lack of motivation make it more difficult to stick to OCD treatment protocols. ERP takes significant effort and hard work, sometimes feeling like an impossible feat. When someone is depressed and can’t find hope of getting better, it will make it that much more difficult to complete exposures.
Another issue is the tendency toward rumination and negative thinking in folks with depression. Working with clients at Leap Counseling, I have found that folks who struggle with a lot of depressive rumination have difficulty resisting rumination during their exposures, which makes the exposures ineffective. Additionally, due to the cognitive bias in folks who are depressed, they may not process the exposure in the most helpful way. For example, rather than learning that they got through something very difficult and survived, they may be focused on the fact that they still feel anxious about XYZ and think they will never get better. This may mean it is necessary to switch to addressing more of the depression symptoms before going back to ERP work.
What is Treated First?
It depends! Much of the time, especially if there is evidence that depression is secondary to OCD, it will be most effective to treat the OCD first and then target any lingering depressive symptoms later. However, there are some signs that it might be important to address depression first:
Tried exposures and depressive symptoms are getting in the way
There are severe struggles with motivation
Spending most of the day in bed
Not engaging in any life activities
There are significant concerns about safety/suicidality
How is Depression Treated?
Cognitive-behavioral therapy has been shown to be effective for treating depression. ERP is also considered a CBT-based treatment, so some of the underlying principles for treatment are the same. Those principles are that thoughts, behaviors, and emotions are all interconnected and can influence each other. These three pieces can then create unhelpful cycles that feed into each other and keep folks feeling bad.
For depression, the cycle goes like this: Parker fails a midterm exam. Parker then thinks, “I am just a failure.” This thought makes Parker feel shameful, sad, and hopeless. Parker then goes back to her dorm and cries. She might tell no one, keep it in, and not ask for help due to feeling ashamed. She starts to neglect her schoolwork because “what’s the point,” and then fails two of her classes. She drops out of school, isolates herself from others, and starts feeling overwhelmed by daily tasks.
Behavioral Activation & Acceptance and Commitment Therapy
Just like with OCD, we can break this cycle by changing the behavioral response. This is done through a treatment called Behavioral Activation (BA), which has been shown to be effective for depression. Instead of going back to her dorm and keeping it in, Behavioral Activation would ask her to come up with a plan for how to address the problem, perhaps asking for advice from others, reaching out to her professor, and going to office hours to get extra help. She may still feel depressed, but she could have kept the original situation from getting worse! Another treatment that can be helpful is Acceptance and Commitment Therapy (ACT), another therapy under the umbrella of CBT. This therapy also focuses on changing behaviors, but it does so by focusing more on defining one’s values and accepting any feelings that come up. It’s about acting in accordance with one’s values, even while feeling depressed. It melds nicely with ERP as well.
Final Thoughts From an OCD Therapist in Wauwatosa, WI
Depression is a very common problem for people with OCD. OCD limits our lives so much that it makes sense that people would start to feel depressed and hopeless as a result. Although depression can make OCD treatment more challenging, a well-trained therapist will be able to help folks navigate those waters. It may take some experimentation, but co-occurring depression and OCD can be treated. It is possible to find hope again and to get back to a life worth living.
You Don't Have to Navigate Your Symptoms Alone. Online OCD Therapy in Wauwatosa, WI, Can Help.
When OCD and depression are both part of the picture, knowing where to start can feel paralyzing, but that's exactly what specialized OCD therapy is designed to help with. With the right support, it's possible to address both conditions in a way that's thoughtful, strategic, and genuinely effective.
Leap Counseling and Consultation is a Wisconsin-based solo therapy practice led by Dr. Johanna Wood, who specializes in OCD and anxiety disorders, including cases where depression and OCD occur together. Dr. Wood provides personalized, evidence-based care that accounts for the full complexity of what her clients are dealing with, helping them find a path forward even when both conditions are making that feel impossible. Taking the first step doesn't have to be overwhelming:
Reach out and schedule a free 15-minute consultation to discuss your concerns and unique goals
Work one-on-one with an experienced OCD therapist in Wauwatosa who understands the OCD-depression connection
Begin addressing both conditions with compassionate, targeted treatment and start finding your way back to a fulfilling life
Other Services Leap Counseling Offers in Wisconsin and All PSYPACT States
When OCD and depression are tangled together, therapy can help you find hope again. In depression and OCD treatment, many people discover that progress in one area creates real momentum in the other, and that a fuller, more engaged life is genuinely within reach.
OCD and depression are far from the only challenges I work with at my Wisconsin-based online therapy practice. Mental health rarely fits into a single neat category, and if there are other concerns layered into what you're experiencing, those deserve attention too. In addition to depression and OCD treatment, I offer therapy for a range of anxiety disorders, including Panic Disorder, Agoraphobia, Generalized Anxiety Disorder, Social Anxiety Disorder, and Phobias.
As a licensed psychologist in Wisconsin and all PSYPACT states, I'm able to work with clients online across many locations. No matter how long OCD and depression have been compounding each other, that pattern doesn't have to be permanent. Visit my mental health blog for more on OCD, depression, and anxiety treatment, and reach out whenever you're ready to get started.
About the Author
Dr. Johanna Wood is a Wisconsin-based clinical psychologist specializing in evidence-based OCD treatment, including Exposure and Response Prevention (ERP). She completed her doctoral internship at Rogers Behavioral Health in the OCD and Anxiety Adult Residential Program, one of the most intensive OCD treatment environments in the country. She then went on to supervise clinical staff in that same setting. She earned her PhD in Clinical Psychology from Northern Illinois University, is licensed in Wisconsin, holds PSYPACT authorization, and is an active member of the International OCD Foundation, contributing to national education efforts on scrupulosity OCD.
Beyond her clinical training, Dr. Wood brings something equally important to her work with clients navigating OCD and depression: she knows firsthand what it's like when OCD wears you down. Having personally experienced the intrusive thoughts and anxiety spiral of relationship OCD, she understands how relentless the battle can feel, and how that exhaustion can open the door to hopelessness. Her own ERP treatment taught her that facing uncertainty head-on, one "leap of faith" at a time, is the way through, not around. That insight shapes how she helps clients stay the course even when depression makes that feel impossible. With a combination of lived experience and deep clinical expertise, she works with clients to untangle OCD and depression through her Wisconsin-based practice.
