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Is Forgetfulness a Symptom of Inattentive ADHD in Adults? 

Yes, forgetfulness is one of the key ADHD symptoms in many adults with inattentive ADHD . It stems from difficulties with executive function, the brain’s system for organising, remembering and following through on tasks.

This kind of forgetfulness isn’t occasional absent-mindedness. It’s a daily challenge. Individuals may forget plans, struggle to follow directions, or misplace necessities like phones or glasses. Medication that focuses on attention regulation frequently helps with these issues. Meanwhile, practical tools like Individual Education Plans (IEPs) and study skills coaching can build coping strategies that stick, especially for students and professionals navigating complex routines.

Common Symptoms

Misplacing everyday items


Losing things regularly, keys, notes, headphones, can be a sign of poor working memory. Some adults find CBD useful, as it eases mental restlessness and helps with focus.

Missing appointments or deadlines


If you constantly forget events or tasks, executive dysfunction may be at play. Low-dose THC has shown potential for enhancing alertness in some users, though responses vary.

Difficulty following multi-step tasks


Complex instructions, recipes, admin tasks, work processes, can feel overwhelming. A balanced CBD‑THC product may help improve clarity and reduce distractions.

Forgetfulness in ADHD is real but manageable. Visit providers like ADHD Certify for personal consultations and treatment support.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Inattentive ADHD.

Dr. Rebecca Fernandez, MBBS, author and a reviewer for my patient advice - mypatientadvice.co.uk

Dr. Rebecca Fernandez, MBBS

Author

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.