The treatment of oligospermia primarily involves identifying its underlying cause. A comprehensive diagnostic evaluation is crucial to determine factors such as chemical exposure, obesity, the presence of varicocele, or if the condition is idiopathic. Once the root cause is established, a tailored treatment plan is implemented. If oligospermia is present without an identifiable underlying cause, or in severe cases of oligospermia (e.g., sperm count below 5 million), assisted reproductive techniques (ART) such as in vitro fertilization (IVF) are often recommended directly. For patients with obesity, a multidisciplinary approach is taken, including guidance from nutrition and diet specialists for weight loss, potential pharmacological support from an endocrinologist if needed, or referral for bariatric surgery if appropriate. In cases of varicocele, surgical intervention may be considered. Following surgery, sperm parameters are re-evaluated; if an improvement is observed, successful treatment is achieved. If no significant improvement occurs, IVF treatment may then be advised. Patients are also counseled on lifestyle modifications, including cessation of smoking and alcohol consumption. However, it's important to note that for severe levels of oligospermia, these lifestyle changes alone may not lead to a significant increase in sperm count, and ART typically remains the primary recommendation. Ultimately, the choice of treatment depends on the individual patient's specific circumstances, including factors like the duration of marriage and the partner's age.