What condition is characterized by recurrent oral and genital ulcers?

Behcet's disease is characterized by recurrent oral and genital ulcers, along with other systemic manifestations such as uveitis, skin lesions, and in some cases, vascular or neurological complications. This condition is a type of systemic vasculitis, and the exact cause is still not fully understood, but it is believed to involve an abnormal immune response.

In Behcet's disease, the recurrent ulcers can be painful and may significantly affect a patient's quality of life. The oral ulcers are similar to canker sores and often present as shallow, painful lesions. Genital ulcers tend to be deeper and can lead to scarring.

In contrast, lichen planus can cause lesions in the oral cavity and skin but does not typically present with recurrent genital ulcers. Psoriatic arthritis is primarily a form of inflammatory arthritis associated with psoriasis and does not characteristically cause oral or genital ulcers. Herpes simplex can cause oral and genital lesions but these are typically vesicular and painful, with episodes that are not recurrent in the same manner as seen with Behcet's disease.

Therefore, the presence of recurrent oral and genital ulcers specifically points towards Behcet's disease as the distinct condition among the options provided.