Somatic symptom disorder is difficult to diagnose and treat. No specific laboratory or imaging tests can diagnose irritable bowel syndrome. There is no recommended test to diagnose latent leprosy in people without symptoms. RMB can accurately diagnose malignancy, however, it cannot reliably diagnose benign disease. A urologist may be able to diagnose the disease and suggest treatment. Usually other imaging techniques are not necessary to clinically diagnose osteoarthritis. Syphilis is difficult to diagnose clinically during early infection. Samantha had symptoms of a serious illness that no one else could diagnose. Some of these are very serious diseases that can be difficult to diagnose and treat. Many periodontists also diagnose and treat oral pathology. Neuralgia is a form of chronic pain that can be difficult to diagnose. Laboratory tests are available to diagnose shingles. Microbiological culture is a principal tool used to diagnose infectious disease. There is no definitive test to diagnose psoriatic arthritis. This is easy to diagnose as well as treat.