Haematological disorders are predominant in the tropical and subtropical countries where major problems of sickle-cell disease (SCD) and thalassaemias are often recorded. However, reports of these conditions have increased in the Western hemisphere more recently. Genetic counselling, early detection of the disease condition, and determining an appropriate treatment regimen remains the solution. Most molecular types of SCD have been determined and the pathological impact of individual types along with the degree of severity is known to clinical investigators and physicians. There is, however, a significant need for a proper counselling system for the clinical diagnosis in most countries. Lack of funding, trained personnel, relevant physicians, instruments, and laboratories are the challenges to overcome. Pregnancy-associated SCD and thromboembolism require special mention due to their mortality rate, complexity of treatment, and care necessities. This review considers some of the most important aspects of pregnancy-associated SCD and thromboembolism, shedding light on the present understanding of the disease condition, pathology, clinical issues, the association with venous thromboembolism, recent treatment measures, and clinical and social management of pregnant women and fetuses for patients with SCD. Integrated social and clinical care along with extensive timely medical and clinical counselling for patients can improve the present situation which is growing in different countries. To save future generations and pregnant mothers from the haematological disorders that could be either prevented or treated, essential genetic screening or counselling should be made a priority by governments. In addition, social education and campaigns related to the disease condition can help to improve the situation.