Retinitis pigmentosa(RP) is a genetic eye disease that causes the retina to break down. With retinitis pigmentosa, the light-sensitive retina slowly deteriorates. Symptoms usually start in childhood due to genetic causes. FG Trade / Getty Images Over time, this leads to blindness. Currently, there is no cure for this chronic, progressive condition. FG Trade / Getty Images Who Inherits Retinitis Pigmentosa? Retinitis pigmentosa typically runs in families, affecting those who have inherited a flawed gene copy from one parent....

Retrograde ejaculation, also known as a dry orgasm, is not harmful but can causemale infertility. There are several causes, including bladder or prostate surgery, nerve damage, and certain medications. Retrograde doesn’t necessarily need treatment unless it affects your ability to conceive. AmnajKhetsamtip / Getty Images Semen is the thick, white fluid made by theprostate glandandseminal vesicles. It carriesspermout of the body. Retrograde ejaculation can happen acutely after a recent procedure or new medication....

Retrograde menstruation is when blood flows backward into the pelvis instead of out of the vagina duringmenstruation. This is common and actually occurs to some degree in most women who have their period. However, not all research supports this. Verywell / Jessica Olah This article reviews the symptoms, causes, and diagnosis, and discusses why treatment is not necessary. Retrograde Menstruation Symptoms People with retrograde menstruation often do not have any symptoms....

Thickening of the Heart’s Lower Chamber Wall Theright ventricleis one of the two lowerchambers of the heart. This article explains right ventricular hypertrophy’s symptoms, causes, diagnosis, and treatment. However, symptoms can come from the lung conditions or heart problems associated with it. SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY / Getty Images These symptoms include: Less common symptoms include a cough, hoarseness, or coughing up blood. Pulmonary hypertension pops up if the arteries in the lungs narrow, causing decreased blood flow....

ROS1 positive lung cancer is an aggressive form of lung cancer that often spreads quickly. This genetic mutation occurs in about 1% to 2% of people diagnosed with NSCLC. Causes Cell genes act as a blueprint for proteins that regulate the growth and division of cells. The ROS1 gene is one in a subfamily of tyrosine-kinase insulin-receptor genes. The ROS1 gene mutation seen in NSCLC is really a fusion between ROS1 and another gene....

Rotator cuffpain is felt at the front and side of your shoulder and upper arm. Pain in this area often indicates injured, inflamed, or worn-down tendons in the rotator cuff. Tendons hold these muscles to the bone and allow you to lift and rotate your arm. Verywell / Alexandra Gordon This article discusses rotator cuff pain. It details the symptoms of the three main causes of rotator cuff painatear,tendinitis, ortendinosis....

The bones in your childs skull are connected by joints called sutures. These sutures usually stay flexible until your little ones second birthday, giving theirbrainroom to grow. As the brain grows, your baby may experience increased intracranial pressure as well. FatCamera / Getty Images Craniosynostosis occurs in one of every 2,500 live births. This is the most common key in of craniosynostosis, and is usually visible at birth or shortly after....

thianchai sitthikongsak / Getty Images What Are the Symptoms of Sarcopenia? This condition is progressive, advancing gradually and worsening over time. Sarcopenia frequently leads to falls andbone fracturesin older adults and is associated with depression and increased hospitalization rates. thianchai sitthikongsak / Getty Images What Causes Sarcopenia? Sarcopenia is a natural process. This process starts in your 30s and becomes progressively worse over time. It is especially prominent among people age 60 and older....

SARS produces symptoms such as high fever, headaches, muscle aches, and feelings of exhaustion. After a few days, respiratory symptoms, including cough and shortness of breath, emerge. There was a global outbreak of SARS in 2003. ti-ja / Getty Images However, there have been no cases of SARS reported since 2004. This article will cover the symptoms, diagnosis, and treatment of SARS. The first symptom that most people experience is a highfever....

It causes large, peeling blisters that look burnt or scalded. SSSS mostly affects infants and toddlers but may also affect adults with severely weakened immune systems. SSSS is mainly diagnosed by its appearance, although lab tests may be ordered to rule out other causes. SDI Productions / Getty Images SDI Productions / Getty Images Causes of SSSS SSSS is a complication of astaph infection. While all strains ofS. ETA and ETB act like scissors, cutting away proteins calleddesmoglein-3that hold together theoutermost layers of skin....

due to parasitic worms found in fresh water Schistosomiasisis a disease due to aparasitic worm. Aparasiteis an organism that invades a human body (called the host) and feeds off it to survive. The worm that causes schistosomiasis can damage several organs. NIBSC / Getty Images How Do You Get Schistosomiasis? Schistosomiasis is triggered by several different types of flatworms. Schistosomiasis, which is also known asbilharziasis, isnt found naturally in the United States....

People with STPD experience high levels of social anxiety and have difficulty forming close relationships. This article describes the symptoms, causes, diagnosis, and treatment of schizotypal personality disorder. It also compares STPD to other mental health conditions and offers strategies and tips for coping. Hill Street Studios / Getty Images Hill Street Studios / Getty Images What Is Schizotypal Personality Disorder? Cluster A personality disorders are characterized by odd or eccentric behaviors....

It also can occur in older adults, typically in their 60s and 70s, but for different reasons. Scoliosis is usually permanent without medical intervention. There is more than one key in of scoliosis. Verywell / Gary Ferster Most cases are classified asidiopathicscoliosis, meaning the cause is unknown. This article discusses the types, causes, and treatment of scoliosis. They are stacked one upon the other like blocks. The vertebrae normally form a straight line when looking at your spine from the back....