Dizziness is a common symptom that describes a range of sensations, such as feeling lightheaded, unsteady, faint, or as if the surroundings are spinning. It is not a disease itself but a signal of an underlying condition affecting balance, blood flow, the inner ear, or the nervous system. Dizziness can occur occasionally and resolve on its own, or it may …

Diverticulitis is a digestive condition that occurs when small pouches, known as diverticula, that form in the lining of the digestive tract become inflamed or infected. It most commonly affects the large intestine and can range from mild to severe. Diverticulitis may develop suddenly and can require medical treatment depending on severity. Symptoms Symptoms can vary from mild discomfort to …

Dissociative disorders are a group of mental health conditions characterized by a disruption in the normal integration of consciousness, memory, identity, emotion, perception, or behavior. These disorders are often associated with trauma and serve as a psychological coping mechanism in response to overwhelming stress. The severity and presentation vary widely among individuals. Symptoms Symptoms depend on the specific type of …

A dislocated shoulder occurs when the upper arm bone is forced out of its normal position in the shoulder socket. It is one of the most commonly dislocated joints due to the shoulder’s wide range of motion. Dislocated shoulders often result from trauma or sudden force and require prompt medical attention to prevent further injury. Symptoms Symptoms are usually immediate …

Diphtheria is a serious bacterial infection caused by Corynebacterium diphtheriae that primarily affects the throat and upper airways. The bacteria produce a toxin that can lead to severe illness and life-threatening complications. Diphtheria is highly contagious but largely preventable through vaccination. Symptoms Symptoms usually develop gradually and can worsen if untreated: Sore throat Fever and chills Thick gray or white …

DiGeorge Syndrome, also known as 22q11.2 deletion syndrome, is a genetic condition caused by the deletion of a small segment of chromosome 22. This deletion affects multiple body systems and can lead to a wide range of physical, developmental, and immune-related problems. The severity and combination of features vary greatly among individuals. Symptoms Symptoms of DiGeorge syndrome differ widely and …

Dysphagia is a medical condition characterized by difficulty swallowing. It can affect the movement of food or liquids from the mouth to the stomach and may occur at any stage of the swallowing process. Dysphagia can be temporary or chronic and may range from mild discomfort to severe swallowing impairment. Symptoms Symptoms of dysphagia vary depending on the underlying cause …

Voice disorders are conditions that affect the pitch, volume, tone, or quality of a person’s voice. They occur when the vocal cords, the structures in the larynx responsible for producing sound, do not function properly. Voice disorders can affect anyone, from children to adults, and may be temporary or chronic. These disorders can impact communication, social interaction, and professional performance, …

Traveler’s diarrhea is a common digestive problem that affects people traveling to regions where sanitation and food hygiene standards may differ from those at home. It usually occurs after consuming contaminated food or water containing bacteria, viruses, or parasites. The condition typically begins suddenly and causes loose stools and abdominal discomfort. Although most cases are mild and resolve within a …

Diarrhea is a condition characterized by frequent, loose, or watery stools. It is a common digestive problem that can be acute, persistent, or chronic depending on its duration. Diarrhea can affect people of all ages and is often caused by infections, dietary factors, or underlying medical conditions. While most cases are mild and resolve on their own, severe or prolonged …