Experts Say Messiness Often Has Causes Beyond Laziness

Many people live with clutter, and experts say it often stems from factors other than a lack of discipline. Psychologists and researchers identify attention-deficit/hyperactivity disorder, mood disorders, stressful life transitions, emotional attachment to possessions, personality traits and indecision among the common reasons homes become messy, and they stress that messiness only requires intervention when it causes distress or disrupts daily living.

"Very few people actually experience a clutter-free or mess-free life," said Michael Tompkins, a psychologist and co-director of the San Francisco Bay Area Center for Cognitive Therapy. He and other clinicians said understanding the underlying causes can help people decide whether to accept their tolerance for clutter or seek help to address it.

Clinicians describe attention deficits and executive-function challenges as a frequent driver of disorganization. Terry Matlen, a psychotherapist and author, called disorganization one of the "hallmark symptoms" of ADHD, noting that impaired executive functioning makes it difficult to plan, initiate and complete routine tasks. Natalie Christine Dattilo, a psychologist and instructor at Harvard Medical School, added that chores with low intrinsic interest and no external deadlines — such as folding laundry or putting away dishes — are particularly likely to be procrastinated by people with ADHD.

Mental health conditions such as depression and anxiety can also produce clutter by sapping motivation and concentration. Dattilo said the part of the brain that anticipates reward may be less active during depression, creating apathy that makes organizing or cleaning feel overwhelming. Tompkins noted research linking cluttered homes with higher cortisol levels, suggesting a two-way relationship in which psychological distress and disordered environments reinforce one another.

Stressful life transitions can temporarily disrupt household routines even for people who are usually tidy. Big changes such as becoming a parent, starting college, moving, entering or ending a marriage and hormonal shifts like perimenopause can create an onslaught of responsibilities and sensory demands that push everyday chores down the priority list. "Because they're stressed... they may deprioritize getting things done around the house," Tompkins said.

Emotional attachment to objects can make decluttering difficult. Joseph Ferrari, a psychology professor at DePaul University, said picking up keepsakes often triggers memories that can be pleasant or painful, prompting people to set items aside rather than making a decision about them. That emotional friction can let piles accumulate.

Personality plays a role as well. Dattilo pointed to conscientiousness — a trait associated with orderliness and self-discipline — and said people who score lower on that dimension tend to be more easygoing about clutter and less driven to maintain a highly organized space. In contrast, those higher in conscientiousness typically prioritize order and routine.

Indecision and decisional procrastination are another contributor. Ferrari described how the desire to avoid blame for a decision can lead people to postpone choices about where items should go or whether to keep them, allowing clutter to persist.

Experts said there is a difference between a preferred lifestyle and a problem that merits intervention. Ferrari and Catherine Roster, a professor at the University of New Mexico, use four areas to assess when clutter becomes harmful: whether it causes personal distress, impairs the livability of the space, damages relationships or harms financial well-being. Tompkins said an example of impairment would be missing appointments because essential items cannot be located.

When messiness crosses that threshold, professionals can help. The Institute for Challenging Disorganization maintains a directory of professional organizers. Mental health professionals can evaluate and treat underlying conditions such as ADHD, depression or anxiety, offering diagnosis and guidance on treatments that may improve executive function, motivation and daily routines.

Clinicians emphasized that there is no single "right" way to keep a home. Tolerance for clutter varies across individuals and cultures, and many people experience periods of disorganization without long-term harm. For those who are troubled by their environment, clinicians recommend assessing whether clutter causes distress or functional impairment and, if so, seeking appropriate help — from practical organizing assistance to mental health care.

Understanding the causes behind a messy living space can reduce shame and point to targeted solutions, experts said. Whether the pathway is behavioral strategies for organizing, therapy for mood or attention disorders, or acceptance of a less ordered lifestyle, addressing the root causes can improve both the home and, in many cases, overall well-being.