Obsessive-compulsive disorder (OCD) - Symptoms and causes
Obsessive-compulsive disorder (OCD) features a pattern of unwanted thoughts and fears known as obsessions. These obsessions lead you to do repetitive behaviors, also called compulsions.

Obsessive-compulsive disorder (OCD) - Mayo Clinic
OCD features unwanted thoughts and fears, or obsessions. These obsessions lead to repetitive behaviors, also known as compulsions, that get in the way of daily activities.

强迫障碍（OCD） - 症状与病因 - 妙佑医疗国际 - Mayo Clinic
OCD 的特征是多余的想法和恐惧，或称强迫思维。 这些强迫思维会导致重复行为，也称为强迫行为，其会妨碍日常活动。

Obsessive-compulsive disorder: Questions and answers
Obsessive-compulsive disorder (OCD) may bring to mind an overly tidy person or a TV character with quirky fixations. But for many people with the disorder, OCD is distressing and sometimes debilitating, says Craig Sawchuk, Ph.D., L.P., a Mayo Clinic psychologist and expert in OCD treatment.

强迫障碍（OCD） - 诊断与治疗 - 妙佑医疗国际 - Mayo Clinic
OCD 的特征是多余的想法和恐惧，或称强迫思维。 这些强迫思维会导致重复行为，也称为强迫行为，其会妨碍日常活动。

Obsessive-compulsive disorder (OCD) care at Mayo Clinic
Using the latest diagnostic and treatment techniques, Mayo Clinic psychiatrists and psychologists provide comprehensive multidisciplinary care for adults, teenagers and children with OCD.

Obsessive-compulsive disorder (OCD) - Mayo Clinic
OCD features unwanted thoughts and fears, or obsessions. These obsessions lead to repetitive behaviors, also known as compulsions, that get in the way of daily activities.

Coping with unwanted and intrusive thoughts - Mayo Clinic Press
Finding a health care provider who is knowledgeable about intrusive thoughts, OCD or PTSD is the first step in treating these conditions. The International OCD Foundation or the National Center for PTSD can help you find therapists, clinics and support groups.

Osteochondritis dissecans - Symptoms and causes - Mayo Clinic
Hergenroeder AC, et al. Osteochondritis dissecans (OCD): Clinical manifestations and diagnosis. https://www.uptodate.com/contents/search. Accessed Aug. 2, 2018.

Anxiety/OCD Cycle - Mayo Clinic Anxiety Coach
Now that you have identified what sets off your anxiety or OCD, let’s figure out what you expect to happen that makes those safe situations seem scary. After you watch the video, answer a few short questions to understand the beliefs and feelings that go with each thing that sets off your anxiety.