diff --git a/include/mbedtls/bignum.h b/include/mbedtls/bignum.h
index 0f3aa00..c61db82 100644
--- a/include/mbedtls/bignum.h
+++ b/include/mbedtls/bignum.h
@@ -192,7 +192,7 @@
 /** \typedef mbedtls_mpi_sint
  * \brief The signed type corresponding to #mbedtls_mpi_uint.
  *
- * This is always an signed integer type with no padding bits. The size
+ * This is always a signed integer type with no padding bits. The size
  * is platform-dependent.
  */
 
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 6912940..61db793 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -2427,7 +2427,7 @@
  *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
  *
  * \warning   ARC4 is considered a weak cipher and its use constitutes a
- *            security risk. If possible, we recommend avoidng dependencies on
+ *            security risk. If possible, we recommend avoiding dependencies on
  *            it, and considering stronger ciphers instead.
  *
  */
diff --git a/include/mbedtls/config_psa.h b/include/mbedtls/config_psa.h
index eb23305..d27fb54 100644
--- a/include/mbedtls/config_psa.h
+++ b/include/mbedtls/config_psa.h
@@ -7,7 +7,7 @@
  *  those definitions to define symbols used in the library code.
  *
  *  Users and integrators should not edit this file, please edit
- *  include/mbedtls/config.h for MBETLS_XXX settings or
+ *  include/mbedtls/config.h for MBEDTLS_XXX settings or
  *  include/psa/crypto_config.h for PSA_WANT_XXX settings.
  */
 /*
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index c7a8e2f..aecac93 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -624,7 +624,7 @@
  * \param ctx      Context for the receive callback (typically a file descriptor)
  * \param buf      Buffer to write the received data to
  * \param len      Length of the receive buffer
- * \param timeout  Maximum nomber of millisecondes to wait for data
+ * \param timeout  Maximum number of milliseconds to wait for data
  *                 0 means no timeout (potentially waiting forever)
  *
  * \return         The callback must return the number of bytes received,