Syphilis is the most obviously and conspicuously appalling of the venereal diseases. Yet it is less frequent and in some respects less dangerously insidious than the other chief venereal disease, gonorrhoea.[231] At one time the serious nature of gonorrhoea, especially in women, was little realized. Men accepted it with a light heart as a trivial accident; women ignored it. This failure to realize the gravity of gonorrhoea, even sometimes on the part of the medical profession—so that it has been popularly looked upon, in Grandin’s words, as of little more significance than a cold in the nose—has led to a reaction on the part of some towards an opposite extreme, and the risks and dangers of gonorrhoea have been even unduly magnified. This is notably the case as regards sterility. The inflammatory results of gonorrhoea are indubitably a potent cause of sterility in both sexes; some authorities have stated that not only eighty per cent. of the deaths from inflammatory diseases of the pelvic organs and the majority of the cases of chronic invalidism in women, but ninety per cent. of involuntary sterile marriages, are due to gonorrhoea. Neisser, a great authority, ascribes to this disease without doubt fifty per cent, of such marriages. Even this estimate is in the experience of some observers excessive. It is fully proved that the great majority of men who have had gonorrhoea, even if they marry within two years of being infected, fail to convey the disease to their wives, and even of the women infected by their husbands more than half have children.