- Alcohol Awareness Month
- Irritable Bowel Syndrome (IBS) Awareness Month
- National Autism Awareness Month
- National Child Abuse Prevention Month
- National Donate Life Month
- National Facial Protection Month
- National Minority Health Month
- National Sarcoidosis Awareness Month
- Occupational Therapy Month
- Oral Cancer Awareness Month
- Sexual Assault Awareness and Prevention Month
- Sexual Assault Awareness Month
- STD Awareness Month
- Women’s Eye Health and Safety Month
- National Minority Cancer Awareness Month
- National Public Health Week (April 6–12)
- National Alcohol Screening Day (April 7)
- Rape, Abuse and Incest National Network (RAINN) Day (April 5)
- World Health Day (April 7)
- National Youth HIV/AIDS Awareness Day (April 10)
- National Infertility Awareness Week (April 19–25)
- Every Kid Healthy Week (April 20–24)
- World Meningitis Day (April 24)
- World Immunization Week (April 24–30)
- National Infant Immunization Week (April 26–May 3)