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General paresis is a problem with mental function due to damage to the brain from untreated syphilis.
General paresis is one form of neurosyphilis. Today it is very rare.
The syphilis infection can appear in many different ways and damages many different nerves of the brain. This damage can cause:
General paresis usually begins about 15 to 20 years after the syphilis infection. Risks include syphilis infection and infection with other sexually transmitted diseases, such as gonorrhea (which may hide symptoms of syphilis infection).
Syphilis infections are passed through sexual contact with an infected person. It can also be spread through nonsexual contact.
The doctor may do the following tests:
Blood and urine tests to detect syphilis in the body include:
Tests of the nervous system may include:
The goals of treatment are to cure the infection and slow the disorder from getting worse. The doctor will prescribe penicillin or other antibiotics to treat the infection. Treatment will likely continue until the infection has completely cleared.
Treating the infection will reduce new nerve damage. But it will not cure damage that has already occurred. A follow-up examination of the cerebrospinal fluid is needed to see whether the antibiotic therapy worked.
Treatment of symptoms is needed for existing nervous system damage. Seizures rarely occur, but emergency treatment may be needed if they do. Anticonvulsant medicines can help control seizures.
Patients who are unable to care for themselves may need help with such activities as eating and dressing. Those with muscle weakness may need occupational therapy or physical therapy.
Without treatment, people can become disabled. People with late syphilis infections are more likely to get other infections and diseases.
Call your health care provider if you know you have been exposed to syphilis or other sexually transmitted infection in the past, and have not already been treated.
Call your health care provider if you have symptoms of general paresis, especially if you know you have been infected with syphilis.
Go to the emergency room or call the local emergency number (such as 911) if you have seizures.
Treating primary syphilis and secondary syphilis infections will prevent general paresis.
Practicing safer sex, such as limiting partners and using protection, may reduce the risk of getting infected with syphilis. Avoid direct skin contact with persons who have secondary syphilis.
Beck BJ. Mental disorders due to a general medical condition. In: Stern TA, Rosenbaum JF, Fava M, et al., eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, PA: Elsevier Mosby; 2008:chap 21.
Koshy A, Roos K. Infections of the nervous system. In: Daroff RB, Fenichel GM, Jankovic J, Mazziotta JC, eds. Bradley’s Neurology in Clinical Practice. 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 53C.
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