If ignored for more than a year, syphilis progresses to the late stage, causing damage to internal organs such as the eyes, brain, joints, bones, liver, and heart; trouble coordinating muscular activity; paralysis; eventual blindness; and dementia (memory disorders, or personality changes). The disease can be diagnosed early with a simple blood test. Treatment with antibiotics cures most patients. Sexually transmitted diseases (STDs) are widespread and can cause many problems in your body. Some STDs may cause no symptoms at all, while others may cause pain, redness, swelling, or white spots on the genital area of men or women. Infections that spread via sexual contact include HIV, herpes, syphilis, gonorrhea, and chlamydia. This article focuses on how STDs can cause paralysis. Paralysis is when one part of your body doesn't work properly because of a problem with the nerves it receives signals from or sends signals to. Your brain controls your muscles, and messages must be sent correctly for them to work. If there is a problem with the nerve signal, your body will not receive the message to move the muscle involved. Symptoms of paralysis include being unable to move certain parts of your body, such as your arms or legs. In some cases, symptoms may be present but not noticed by the patient. These patients may require medical attention if they experience worsening symptoms or signs of paralysis.