Sexually active male comes with complaints of recurrent ulcers over the glans which heals with hyperpigmentation, probable diagnosis is –
**Core Concept**
The question is testing the knowledge of sexually transmitted infections (STIs) that cause genital ulcers. The **pathophysiology** of these ulcers and their characteristic features are crucial in making a diagnosis.
**Why the Correct Answer is Right**
Given the recurrent nature of the ulcers and the healing with **hyperpigmentation**, the most likely diagnosis is an STI. Among common STIs, **Chancroid** caused by Haemophilus ducreyi, **Genital Herpes** caused by Herpes Simplex Virus, and **Syphilis** caused by Treponema pallidum can present with ulcers. However, the specific pattern of healing with hyperpigmentation, especially in the context of recurrent ulcers, points towards a particular diagnosis.
**Why Each Wrong Option is Incorrect**
**Option A:** Could be incorrect if it doesn't match the classic presentation of the disease in question.
**Option B:** Might be incorrect if it typically presents differently or doesn't usually cause hyperpigmentation upon healing.
**Option C:** Could be a plausible option but might lack the specific detail of hyperpigmentation upon healing.
**Option D:** Might not fit well with the clinical presentation described.
**Clinical Pearl / High-Yield Fact**
Recurrent genital ulcers with hyperpigmentation should prompt an investigation into STIs, with a focus on those that cause such specific lesions. Remembering the classic presentations of common STIs is crucial for diagnosis.
**Correct Answer:** D. Chancroid