Which condition may cause similar symptoms of blisters on the lips and tongue?

The Herpes simplex virus infection is known for causing blisters and lesions, particularly on the lips (often referred to as cold sores) and inside the mouth, including on the tongue. These blisters can be painful and are often associated with other symptoms like fever and lymphadenopathy. The virus typically reactivates in response to stress, illness, or immune system changes, making it a common cause of such oral and facial symptoms.

In contrast, the other conditions listed do not typically present with blisters on the lips or tongue. For instance, gallbladder disease primarily affects the digestive system and is associated with pain in the upper abdomen, nausea, and possibly jaundice, rather than oral lesions. Hypertension often presents with few to no symptoms until severe complications arise, and it is not linked to blisters or mucosal lesions. Pneumonia involves the respiratory system and usually presents with symptoms like cough, fever, and difficulty breathing, rather than oral manifestations.