A 16 year old female patient reported with chief complaint of small ulcers on the cheek and tongue since once week. Mild rise in temperature was noted on general examination. On oraL examination, multiple ulcers were noted on the buccal and labial mucosa. She also reported that she is having her board exams in a week. The probable etiology is

**Core Concept**
Acute aphthous ulcers, commonly known as canker sores, are a common oral mucosal condition characterized by the presence of small, painful ulcers on the buccal and labial mucosa. The exact etiology of aphthous ulcers is multifactorial, involving factors such as trauma, stress, and nutritional deficiencies.

**Why the Correct Answer is Right**
The patient's history of stress due to upcoming board exams is a significant contributing factor to the development of aphthous ulcers. Stress triggers the release of cortisol, which can disrupt the oral mucosa's integrity and lead to ulcer formation. Additionally, the patient's mild rise in temperature may indicate an underlying viral infection, such as herpes simplex virus, which can also cause oral ulcers. However, the patient's presentation is more consistent with aphthous ulcers.

**Why Each Wrong Option is Incorrect**
**Option A:** Herpes Simplex Virus (HSV) infection typically presents with multiple, grouped ulcers on the lips or oral mucosa, accompanied by significant pain and fever. The patient's presentation is less consistent with HSV.
**Option B:** Hand-Foot-and-Mouth Disease, caused by Coxsackievirus A, typically affects children and presents with ulcers on the oral mucosa, hands, and feet. The patient's age and presentation are not consistent with this diagnosis.
**Option C:** Behçet's Disease is a rare autoimmune disorder characterized by recurrent oral ulcers, genital ulcers, and uveitis. The patient's presentation is not consistent with the typical triad of Behçet's Disease.

**Clinical Pearl / High-Yield Fact**
Aphthous ulcers can be exacerbated by factors such as spicy or acidic foods, stress, and certain medications. Topical anesthetics, such as lidocaine, and corticosteroid mouthwashes can provide symptomatic relief.

**Correct Answer:** D.

✓ Correct Answer: D. Any of the above