Low sperm count can occur due to smoking, alcohol, stress, obesity, varicocele, hormonal imbalance, diabetes, heat exposure, poor sleep, nutritional deficiencies, or infections. Treatment depends on the underlying cause, so a semen analysis and medical evaluation are important before starting medicines. Doctors may sometimes prescribe supplements such as Coenzyme Q10, L-Carnitine, zinc, selenium, or fertility-support medicines in selected patients. Avoid smoking, alcohol, overheating of the testes, gym steroids, and maintain healthy weight, exercise, and sleep. Please consult a urologist or fertility specialist for proper testing and personalized treatment, especially if you have been trying for pregnancy for a long time.