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What is Dravet Syndrome? Dravet syndrome is an uncommon condition marked by seizures and developmental challenges. Onset of seizures happens prior to the age of 1, while cognitive, behavioral, and physical issues typically manifest around ages 2 or 3. It’s important to note that Dravet syndrome is a lifelong ailment. …

Overview Deep vein thrombosis (DVT) occurs when a blood clot (thrombus) forms in one or more of the deep veins in the body, usually in the legs. Deep vein thrombosis can cause leg pain or swelling. Sometimes there are no noticeable symptoms. You can get DVT if you have certain …

What is a Deviated Septum? A deviated septum is a condition in which the nasal septum (the bone and cartilage that divide the nose in half) is crooked, making one nasal passage smaller. If severe, breathing through the nose can be difficult. Most people naturally have some deviation – only …

Dead Butt Syndrome Overview Dead butt syndrome, also known as gluteal amnesia, is a problem affecting the glute muscles that occurs from inactivity and a sedentary lifestyle. The Gluteus Maximus (GM) muscle is the largest and most powerful in the human body. It plays an important role in optimal functioning …

What is De Quervain’s Tenosynovitis? De Quervain’s tendinosis is a painful swelling (inflammation) of specific tendons of the thumb. The condition is also known as de Quervain tendinitis or de Quervain’s tenosynovitis. DeQuervain’s was named after the Swiss surgeon who first described the condition in 1895. Tendons are bands of …

What Is Dactylitis Psoriatic Arthritis? Dactylitis is the clinical name for when your fingers and toes are swollen, tender, warm, and inflamed due to a psoriatic arthritis (PsA) flare-up or an associated condition. The name comes from the Greek word for finger (“dactylos”). With dactylitis, your fingers can become so …

Overview Dementia is a term used to describe a group of symptoms affecting memory, thinking and social abilities severely enough to interfere with your daily life. It isn’t a specific disease, but several diseases can cause dementia. Though it generally involves memory loss, memory loss has different causes. Having memory …

Overview Deafblindness is a combination of sight and hearing loss that affects a person’s ability to communicate, access information and get around. It’s also sometimes called “dual sensory loss” or “multi-sensory impairment”. A deafblind person won’t usually be totally deaf and totally blind, but both senses will be reduced enough …