Get information on causes of mild to severe lower back pain (arthritis, pregnancy, herniated disc, sciatica, ovarian cysts). Read about low back pain symptoms, backache treatment, and diagnosis. Learn how to get relief from low back pain.

Spinal muscular atrophy is a hereditary disease that destroys lower motor neurons nerve-cells in the brain stem and spinal cord. Signs and symptoms depend on the type of spinal muscular atrophy, but may include hypotonia, tremors, impaired breathing, and abnormal gait. There is no cure for this muscular atrophy.

Get the facts on symptoms, types, causes, diagnosis and treatment of kyphosis, an abnormal curvature of the thoracic spine that creates the look of a hump on the back. Learn about different types of kyphosis, including Scheuerman's kyphosis, cervical, thoracic, dorsal, and lumbar kyphosis.

Learn about cerebral palsy (CP) signs and symptoms such as seizures, irritability, jitters, feeding and respiratory problems, and lethargy. Signs and symptoms of cerebral palsy generally present in the first year of life. Learn about different types of cerebral palsy and treatment.

Get the facts on Ehlers-Danlos syndrome (EDS) symptoms (joint hypermobility, skin laxity), easy bruising, and weak tissues. Several types of Ehlers-Danlos syndromes and treatments are described.

Read about Noonan syndrome prognosis, symptoms, signs, genes, and more.

Read about the emotional and physical changes of puberty (growth spurt, pubic hair, period, zits, breast development), hormones (testosterone, estrogen), and sexual maturity stages.

Read about post-polio syndrome (PPS) symptoms like weakness, fatigue, muscle atrophy, joint pain, scoliosis, and more. Treatment information is included.

Campomelic dysplasia is a rare genetic condition that may affect the bones and genitals of affected individuals. Campomelic dysplasia may be life threatening. Learn about causes, symptoms, diagnosis, treatment, and prognosis of campomelic dysplasia.

The joint hypermobility syndrome is a condition in which the joints easily move beyond the normal range expected for a particular joint. The condition tends to run in families. Symptoms of hypermobility syndrome include joint pain. People with hypermobility syndrome are more susceptible to injury, including dislocations and sprains. Anti-inflammatory drugs can help with joint pain. Exercise can strengthen muscles, providing stability.

Cleft lip the fourth most common birth defect in the U.S. Get information about cleft lip and cleft palate causes, treatment, symptoms and signs, and related problems.

Periodic paralysis syndrome describes seven to eight different types of rare genetic conditions that cause symptoms of episodic muscle weakness and paralysis. Episodes of paralysis can occur in only certain areas of the body, like an arm or leg, or the whole body. Hypokalemic and normokalemic are two kinds of this genetic problem. Symptomatic treatment depends upon the type. There is no cure for these syndromes.

What is radiculopathy? Radiculopathy comes from a compressed nerve in the spine causing pain and other symptoms. Learn about radiculopathy symptoms, treatment, causes, and more. Discover different regions affected by radiculopathy including the cervical, lumbar, and thoracic spine.

Learn about Turner syndrome, an abnormality in the X chromosome of females that leaves them infertile. Symptoms also include a webbed neck, puffiness of the hands and feet, heart defects, and kidney problems. Facts about causes, diagnosis and treatments

Read about Angelman syndrome, a genetic disorder, which symptoms include seizures, speech impairment, small head size, sleep disorders, movement and balance disorders, and hyperactivity.

Down syndrome is a condition caused by chromosome replication errors. A baby born with Down syndrome may have symptoms such as unusual facial features, low IQ, and difficulty learning to walk and crawl. Someone with Down syndrome may have a shorter life expectancy. Learn more facts about Down syndrome in this article.

Get the facts on the history of polio, an infectious disease that causes symptoms and signs such as paralysis and limb deformities. Also, read about polio prevention through vaccination.

Learn about Charcot-Marie-Tooth (CMT) disease, an inherited neurological disorder affecting the peripheral nerves in the musculature. Symptoms include foot deformities, weakness of the lower leg and foot muscles, and difficulty walking, breathing, and swallowing.

Learn more about cleidocranial dysplasia (CCD), a genetic disorder that affects the development of the bones and teeth. Symptoms vary widely in severity.

Marfan syndrome is a familial (genetic, hereditary) condition affecting connective tissue of the body. Symptoms and characteristics include an arched palate (roof of the mouth), scoliosis, and flat feet. Problems with the eyes; cardiovascular and nervous system; skin; and lungs. Genetic testing and counseling are available for this syndrome.