According to the WHO criteria, each ml of semen should have more than 15 million sperms. If it is less than 15 million, then it is called as low sperm. How do we identify it? Do a semen analysis, in the first semen analysis if the count is less, then pleads o not panic. Repeat the semen analysis. This time you can avoid sex for 3 to 5 days, and then do the semen analysis. If after that also the count is less, then you are suffering from low sperm count. How to manage? It depends on the causes.so the few causes are forst the lifestyle management, especially the younger generation, it is very important like obesity, smoking, drinking, very strenuous exercises, cycling for a long distance or a long distance on a motor bike. Even horse riding can bring down you sperm count. A condition called varicocele where there are a lot of blood vessels which are engorged around your testicular area. It is detected by doing an ultrasound Doppler. The second would be a hydrocele, where there would be fluid collection around the scrotum. third could be an obstruction of the tube called as vas deferens, which carries the sperm from the testis to the ejaculatory tract, or trauma or injury happened to your testicular tissue or maybe some infection like mumps or tuberculosis even if you had suffered in your young age, that could have affected your testicular tissue. It could be hormonal imbalance where the pituitary glands in the brain which is responsible for the production of semen. So if there is a hormonal imbalance, there could be a decrease in the levels. The last but not the least could be is idiopathic. 30% of the cases, there could be unexplained causes; there could be a low sperm count. Coming to the management, meet a doctor to find out he cause which you are having, most of which are unavoidable. The only be cause which is avoidable is the lifestyle management. The first thing is obesity, late night dinners, untimely foods, junk foods will help you to gain weight and it in turn will bring down your sperm count. Secondly, if you are a chronic smoker, then stop smoking immediately. Next is alcohol consumption. Stop it completely. If you are not able to stop it, then decrease it to once in 6 months or when there is a party. Next is strenuous exercises, the young men hit the gym and do so and have dietary supplements. To develop 6 packs or 8 packs. It is really not healthy. Exercise is good, but do it in moderation. This lifestyle management is within your reach. If you are able to manage everything, then your sperm count will be good and you will be a happy person.