Qilatte Haiwane Manwiya (oligospermia) is one of the most common causes of male infertility. Despite up to date advances in the management of male infertility, the problem has not been solved satisfactorily. There are various defects in spermatozoa found on semen analysis which produce male infertility such as inadequate number of spermatozoa in semen, the failure of spermatozoa to move with adequate power and speed toward their target etc. Eminent Unani physician are treating the problem since the time immemorial not only for improving the numbers of spermatozoa but also the other defects of spermatozoa. In almost every Unani treatise, the discussion about Qilatte Haiwane Manwiya is found in detail including the causes, pathology, pathogenesis, clinical presentation, line of treatment and a vast range of treatment.