Aside from these acute manifestations, more chronic and mild affections, especially of the serous membranes, are well known. The most common of these exhibitions occur in the joints, mostly in the knee. A gonococcus peritonitis, pericarditis, or endocarditis are, however, well known. Because of the similarity of the discomfort and the disability resulting from the joint complications of clap to the ordinary joint manifestations of rheumatism, these lesions have long been popularly called _gonorrheal rheumatism_. The name, however, should be discarded as being incorrect, and for it the best substitute would be _postgonorrheal arthritis_. These lesions may be sudden in their onset or may come slowly. They may occur at any time during the acute stage or after its apparent subsidence. The first manifestations involve the serous membranes proper; the fibrous tissues participate sooner or later, and the infiltration resulting from the inflammation thus set up will often permanently compromise their integrity and cause an impairment of their function for the rest of the patient’s life. They are usually confined to one of the larger joints, but may involve several, either simultaneously or consecutively. In acute cases the swelling is somewhat pronounced and the pain and soreness intense. The local symptoms simulate those of acute articular rheumatism. In the fluid drawn from these joints the gonococcus can be occasionally demonstrated. The course of the disease is usually slow, and convalescence may be protracted. Nor is the disability acute only and temporary, but it is often made permanent by the formation of adhesions resulting from the condensation of exudates. Partial or complete ankylosis may result, with considerable deformity. The muscle spasm provoked by the acute joint inflammation will occasion the same distortions and subluxations as are produced by tuberculous and other forms of arthritis, and operations varying in severity from forced motion to joint exsection may later be necessary. (See pp. 392 and 393.) The writer has seen cases of postgonorrheal toxemia of extremely chronic and even fatal type, where the joints were conspicuously involved and where they did not constitute the most serious features of the disease. These cases proved most intractable to treatment and illustrate the possible complications of gonorrhea. In addition to the joints various _bursæ_ and _tendon sheaths_ may suffer in the same way as do the joint membranes. Such lesions are seen about the hands and feet, especially about the tendo Achillis, and are also seen in the muscles of the neck and of the orbit. The treatment of these gonorrheal complications should be effected largely by improving elimination and getting rid of the general toxemia; thus hot-air baths, diuretics, and cathartics are advisable. These eliminants, with free massage, are useful in dislodging the toxic products.