The natural processes, which women undergo, of menstruation, parturition, and of preparing nutriment for the infant, together with the diseases, to which they are subject at these periods, and which are frequently remote causes of insanity, may, perhaps, serve to explain their greater disposition to this malady. As to the proportion in which they recover, compared with males, it may be stated, that of 4832 women affected, 1402 were discharged cured; and that, of the 4042 men, 1155 recovered. It is proper here to mention, that, in general, we know but little of what becomes of those who are discharged; a certain number of those cured, occasionally relapse, and some of those, who are discharged uncured, afterwards recover: perhaps in the majority of instances where they relapse, they are sent back to Bethlem. To give some idea of the number, so re-admitted, it may be mentioned, that, during the last two years,[18] there have been admitted 389 patients, 53 of whom had at some former time been in the house. There are so many circumstances, which, supposing they did relapse, might prevent them from returning, that it can only be stated with certainty, that within twelve months, the time allowed as a trial of cure, so many have been discharged perfectly well. To shew how frequently insanity supervenes on parturition, it may be remarked, that from the year 1784 to 1794 inclusive, 80 patients have been admitted, whose disorder shortly followed the puerperal state. Women affected from this cause, recover in a larger proportion than patients of any other description of the same age. Of these 80, 50 have perfectly recovered. The first symptoms of the approach of this disease after delivery, are want of sleep; the countenance becomes flushed; a constrictive pain is often felt in the head; the eyes assume a morbid lustre, and wildly glance at objects in rapid succession; the milk is afterwards secreted in less quantity; and when the mind becomes more violently disordered, it is totally suppressed. Where the disease is hereditary, parturition very frequently becomes an exciting cause. From whatever cause this disease may be produced in women, it is considered as very unfavourable to recovery, if they should be worse at the period of menstruation, or have their catamenia in very small or immoderate quantities. A few cases have occurred where the disease, being connected with menstruation, and having continued many years, has completely disappeared on the cessation of the uterine discharge. At the first attack of this disease, and for some months afterwards, during its continuance, females most commonly labour under amenorrhoea. The natural and healthy return of this discharge generally precedes convalescence.